EPA-460/3-76-027 October 1976 ANALYSIS OF PRODUCTION CARS' FUEL ECONOMY U.S. ENVIRONMENTAL PROTECTION AGENCY Office of Air and Waste Management Office of Mobile Source Air Pollution Control Emission Control Technology Division Ann Arbor, Michigan 48105 ------- EPA-460/3-76-027 ANALYSIS OF PRODUCTION CARS' FUEL ECONOMY by Dr. Ronald F. Janz Mobile Systems Group Aerospace Corporation El Segundo, California 90245 Contract No. 68-01-0417 EPA Proj ect Officer: J . D . Murrell Prepared for U.S. ENVIRONMENTAL PROTECTION AGENCY Office of Air and Waste Management Office of Mobile Source Air Pollution Control Emission Control Technology Division Ann Arbor, Michigan 48105 October 1976 ------- This report is issued by the Environmental Protection Agency to report technical data of interest to a limited number of readers. Copies are available free of charge to Federal employees, current contractors and grantees, and nonprofit organizations - as supplies permit - from the Air Pollution Technical Information Center, Environmental Protec- tion Agency, Research Triangle Park, North Carolina 27711, or from the National Technical Information Service, 5285 Port Royal Road, Spring- field, Virginia 22151. This report was furnished to the Environmental Protection Agency by Aero- space Corporation, El Segundo, California, in fulfillment of Contract No. 68-01-0417. The contents of this report are reproduced herein as received from Aerospace Corporation. The opinions, findings, and conclusions ex- pressed are those of the author and not necessarily those of the Environmen- tal Protection Agency Mention of company or product names is not to be considered as an endorsement by the Environmental Protection Agency. Publication No. EPA-460/3-76-027 11 ------- ACKNOWLEDGMENTS During the course of this study, Mr. J. Dillard Murrell of the U.S. Environmental Protection Agency (EPA), Emission Control Technology Division, served as the EPA Project Officer and provided valuable guidance and assistance. His efforts are gratefully acknowledged. Dr. R. F. Janz of The Aerospace Corporation was principally responsible for the analysis effort. The following technical personnel of The Aerospace Corporation also made valuable contributions to the analyses per- formed under this contract: W. M. Smalley P- L. McGill E. Lamken S. Cheung K. A. Glaser D. A. Oster L. Forrest, Director Vehicle Performance Office Mobile Systems Group Approved by M. G. Hinton, Group Director Mobile Systems Group Environment and Energy Conservation Division eltzer, General/Manager nvironment and Energy Conservation Division 111 ------- CONTENTS FOREWORD ii ACKNOWLEDGMENTS iii SUMMARY vii i. INTRODUCTION 1-1 2. DATA ACQUISITION AND ANALYSIS 2-1 3. RESULTS 3-1 APPENDIX I. CALIFORNIA TITLE 13 DATA BASE 1-1 APPENDIX II. FORMULAS FOR HARMONIC MEAN FUEL ECONOMY AND THE TEST STATISTIC FOR EVALUATING DIFFERENCES IN FUEL ECONOMY II-1 TABLES 1-1. Available Data from Three Data Sources 1-3 2-1. Highway-Urban Fuel Economy Correction Factors 2-2 3-1. Carline Classes Common to Both the California Title 13 Data Base and the EPA Certification Data Base 3-3 3-2. Models in Those Classes Common to Both the California Title 13 Data Base and the EPA Certification Data Base 3-4 3-3. Production Car Fuel Economy Study - Urban Results 3.5 3-4. Production Car Fuel Economy Study Highway Results 3-6 3_5. Production Car Fuel Economy Study - Composite Results 3-7 ------- SUMMARY Harmonic mean fuel economies, in miles per gallon, were computed for nine carline classes which were common to the California Title 13 Data Base and the U.S. Environmental Protection Agency (EPA) Certification Test Data Base for 1975 and 1976 model years. The following parameters were used to define a carline class: model year, inertia weight, cubic inch dis- placement (CID), number of carburetor barrels, and transmission type. A class was considered to be acceptable for analysis if it contained at least three cars. Both urban and high-way fuel economies determined from the California Title 13 data were found to be consistently lower (urban: 5 to 19%; highway: 6 to 23%) than corresponding fuel economies determined from the EPA certi- fication data. However, the statistical significance of this result could not be assessed since the test for statistically significant differences is an asymp- totic test requiring a larger number of cars per class than were available for analysis in this study. vn ------- SECTION 1 INTRODUCTION The objective of this study was to compare fuel economies from three sources: (1) The California Title 13 Data Base Tests, (2) The U.S. Environ- mental Protection Agency (EPA) In-Use Compliance Test program, and (3) The EPA Certification Test Data Base. The California Air Resources Board (CARB) testing of production vehicles, authorized under Title 13 of the California Administrative Code, has as its objective the emission testing of new production vehicles, with primary attention given to those engine families which just barely meet the California emission requirements during the EPA certification tests. Mileage is accu- mulated on these vehicles prior to testing over an approved durability driving schedule. The CARB permits each manufacturer to specify the mileage ac- cumulation it considers necessary to overcome the "green-engine" effect from an emissions point of view. Typical mileage accumulation varies from 20 to 120 miles compared to the 4000 miles accumulated on the prototype certifica- tion test vehicles. The CARB tests about 80 engine families per year. The In-Use Compliance Test program is conducted by the EPA to monitor the emissions performance of production vehicles as tested after the cars are in operation. This data base consisted of 4950 vehicles covering the 1972 through 1974 model years. The EPA Certification Test Data Base incorporates the fuel economy data for 1975 and 1976 model year vehicles as determined from the EPA emis- sions certification test results. This data base includes 759 vehicles for the 1975/1976 model years. Of this total, 277 vehicles were equipped to meet the California emission standards. The remainder -were equipped to meet the Federal emission standards. Data from the first source did not exist in a form suitable for analysis at the beginning of the study. However, an appropriate data base was developed 1-1 ------- by hand-transcribing data from test results kept on file at the GARB office in El Monte to keypunch coding forms. A card deck consisting of data on 271 cars for model years 1974 through 1976 was then generated from these forms. Data from the other two sources were supplied by the EPA Project Officer on magnetic tape. Many factors affect fuel economy. Those which were singled out for this study are as follows: inertia weight, cubic inch displacement (CID), number of barrels in the carburetor (or fuel injection), and transmission type (manual versus automatic). These parameters were used to define an indi- vidual carline class. Other parameters, such as axle ratio, number of gears in the transmission, and whether the car is air conditioned, also may have an important effect on fuel economy. However, when additional parameters are used to define a carline class with a relatively small data base, it becomes increasingly difficult to find enough cars which have these parameters in com- mon so that meaningful mean fuel economies can be determined and compared, statistically, with other mean values. In order to assure that the data bases could be compared on a carline basis, three cars per class were considered to be the minimum acceptable number- The dispersion in fuel economy was generally small enough in these classes that mean values could be used to characterize a class. Since the test for differences between harmonic mean values adopted by EPA in the FY 72 Automobile Exhaust Emission Surveillance - Analysis Program (EPA-460/2 -74-001, Appendix III) is an asymptotic test, it is not strictly applicable to classes this small in size. However, the test statistics for comparing mean fuel economies (Appendix II) were computed and are tabulated in Section 3 of this report. The emission control equipment used by various manufacturers, in general, also affects fuel economy. Consequently, cars intended for operation in California were distinguished from those designed for the other 49 states in defining a carline class. Also, since this equipment may change from one year to the next because of changing emission standards, the model year was used to define a carline class. 1-2 ------- The data which were available for this study, organized according to model year and California versus the other 49 states, are shown in Table 1-1. It is clear from this table that, given these data, comparisons between data bases can only be made for California cars in model years 1974 through 1976. However, it was found that the comparisons were further restricted by the fact that there was an insufficient number of 1974 model year cars in the EPA In-Use Compliance Test Data Base to compare with corresponding cars in the California Title 13 Data Base. In the In-Use Compliance Test Data Base, the date of purchase was used to determine the model year, while the test site was used to determine the California cars. A carline class could not be identi- fied which contained at least three cars purchased after September 1, 1973 and tested in Los Angeles. Consequently, it was not possible to use the EPA in-use compliance data in this study. As a result, only comparisons between the EPA Certification Test Data Base and California Title 13 Data Base for model years 1975 and 1976 were made. Table 1-1. Available Data from Three Data Sources MODEL, YEAR STATE California 49 States 1972 In-Use^ In-Use 1973 In-Use In-Use 1974 In-Use Title 13(2) In-Use 1975 EPA<3> Title 13 EPA 1976 EPA Title 13 EPA (1) Data from EPA In-Use Compliance Test programs. (2) Data from California Title 13 tests. (3) Data from EPA vehicle certification tests. 1-3 ------- SECTION 2 DATA ACQUISITION AND ANALYSIS The California Title 13 Data Base was constructed from data acquired from the GARB, El Monte, California. A listing and description of this data base is given in Appendix I. Three miles -per -gallon (mpg) values (from re- peat tests) were recorded for each car. Arithmetic mean values were used to represent individual car fuel economies. For all carline classes which were common to this data base and the EPA Certification Test Data Base, the mpg values corresponded to the 1975 urban test procedure. Highway values were obtained by the use of the factors supplied by the EPA Project Officer and are summarized in Table 2-1. Composite values were obtained from the following formula: "^composite = (0 . 55/mpg^J + (0. 45/mpghighway) (The above formula and factors were used only in conjunction with the California Title 13 data since highway and composite fuel economies were supplied directly in the EPA Certification Test Data Base.) As indicated in Section 1 of this report, four design parameters were used to characterize an individual carline class: inertia weight, cubic inch displacement (CID), number of barrels in the carburetor (or fuel injection), and transmission type (automatic or manual). Those cars whose inertia weights differed by a few pounds or CID by a few cubic inches were grouped ir the same class. For example, cars with inertia weights of 5501 Ib were grouped together with cars whose inertia weights were reported as 5500 Ib. Similarly, cars with a CID of 302, 304, or 305 were grouped together in the same class. With respect to the nine classes considered in this study, the only relevant grouping parameter is the CID; e. g. , one California Title 13 class 2-1 ------- consists of two Novas (CID = 305), a Camaro (CID = 305), and three Hornet wagons (CID = 305). This class was compared with an EPA certification class consisting of three Monarchs (CID = 302)(Section 3, Table 3-2). Table 2-1. Highway-Urban Fuel Economy Correction Factors MODEL YEAR MANUFACTURER 1975 1976 General Motors Ford Chrysler American Motors Volkswagen Toyota Nissan 1.384 1.470 1.428 1.346 1.546 1.489 1.449 1.399 1.380 1.404 1.352 1.498 1.504 1.419 2-2 ------- SECTION 3 RESULTS The nine classes of cars -which were identified as common to both the California Title 13 Data Base and the EPA Certification Test Data Base are listed in Table 3-1. The individual models for each class are given in Table 3-2. Harmonic mean fuel economies for each of the classes are listed in Tables 3-3 through 3-5. The test statistic (Appendix II) listed in these tables can ordinarily be used to determine whether the differences in fuel economies indicated in these tables are statistically significant at a given significance level. For example, if the value of this test statistic exceeds 3.84146 then the hypothesis that the mean fuel economies are the same is rejected at a 0.05 significance level. (The formulas which were used to compute the har- monic mean fuel economies and the test statistics are given in Appendix II.) Since this is an asymptotic test, it is not strictly applicable to the small classes considered in this study. The values given in these tables should therefore be treated with caution. It is apparent, however, from Tables 3-3 through 3-5 that the harmonic mean fuel economies based on the California Title 13 data are consistently lower than those based on the EPA certification data. These values vary from 5 to 19% lower for urban driving and from 6 to 23% lower for highway driving. These results should be considered preliminary in nature since only a limited number of cars were analyzed in this study. However, the differ- ence in fuel economy between these data sources can be at least partially ex- plained by the "green-engine" effect. As indicated in Section 1, typical mile- age accumulation for the cars tested by the GARB varied between 20 and 120 miles compared to the 4000 miles accumulated on the EPA prototype certifi- cation test vehicles. 3-1 ------- It was the original intent of this study to compare data bases not only on a carline basis, but also by manufacturer and fleet. This was not possible because of the limited number of carline classes and models per class which were available for analysis. For example, there were only two Pintos and two Granadas representing Ford in the California Title 13 Data Base in car- line classes which were common to the EPA Certification Test Data Base. These four cars cannot realistically be used to represent the Ford Motor Company. Even though projected sales data were available by model, it was not used to compute sales-weighted harmonic mean fuel economies for carline classes. In addition to relating mean fuel economies to sales, sales weight- ing is used to correct for differences in model (or class) mix, and it is clear from Table 3-2 that rarely are the same models being compared in the two data bases. Also, in many cases, only a single car represents a given model. 3-2 ------- Table 3-1. Carline Classes Common to Both the California Title 13 Data Base and the EPA Certification Data Base MODEL YEAR Oo I INERTIA WEIGHT (Ib) CID CARBURETION TRANSMISSION 1975 1975 1975 1975 1975 1976 1976 1976 1976 3000 4500 5000 5000 5500 4000 4000 4500 4500 140 350 440 455 455 250 304 350 360 2V<" 4V 4V 4V 4V IV 2V 4V 4V Automatic Automatic Automatic Automatic Automatic Automatic Automatic Automatic Automatic (1) 2V corresponds to two Venturies, or barrels, in carburetor. ------- Table 3-2. Models in Those Classes Common to Both the California Title 13 Data Base and the EPA Certification Data Base CLASS* CALIFORNIA TITLE 13 530014020 Pinto (2), Vega (2) 545035040 Century/Regal (2), Monte Carlo, Cutlass, LeMans 550044040 Monaco (3), Fury (3) 550045540 Delta 88, 98, Granville 555045540 Electra, Estate Wgn, Granville 640025010 Granada (2), Nova, Ventura 640030420 Nova (2), Camaro, Hornet Wgn (3) 645035040 Grand Prix, LeMans, Monte Carlo (2) 645036040 Matador (2), Matador Wgn EPA CERTIFICATION Mustang II, Bobcat Wgn, Monza, Aetre Monte Carlo, Cutlass, .LeMans New Yorker (3) 98, Granville (2) Riviera, 98, Pontiac Wgn Granada (2), Cutlass (2), Chevelle Monarch (3) LeMans (2), Monte Carlo, Century/Regal, Cutlass Coronet (3) *Class Code: Digit 1 = Model year, Digits 2-4 = weight/10, Digits 5-7 = CID, Digit 8 = Carburetion, Digit 9 = Transmission (see Table 3-1). ------- Table 3-3. Production Car Fuel Economy Study - Urban Results Sales Weighted: No Minimum Number of Cars Per Class: 3 Critical Value of Test Statistic at .05 Significance Level = 3.84146 MEAN FUEL ECONOMIES CLASS 530014020 545035040 550044040 550045440 555045440 640025010 640030420 645035040 645036040 EPA Cert 17.2 11.5 9.2 10.3 9.9 14.6 11.5 13.0 11.3 Calif Title 13 15.4 10.6 7.8 9.5 8.8 12.4 10.8 10.5 9.7 TEST STATISTIC^ EPA-Calif 8.8 1.3 35.0 2.3 2. 6 17.9 5.7 49.9 14.0 (1) Defined in Appendix II. 3-5 ------- Table 3-4. Production Car Fuel Economy Study - Highway Results Sales Weighted: No Minimum Number of Cars Per Class: 3 Critical Value of Test Statistic at .05 Significance Level = 3.84146 MEAN FUEL ECONOMIES TEST STATISTIC (1) CLASS 530014020 545035040 550044040 550045440 555045440 640025010 640030420 645035040 645036040 EPA Cert 24.3 15.6 13.9 14.3 13.6 19.8 16.3 18.8 17.0 Calif Title 13 22.0 14.7 11.1 13.1 12.2 17.2 14. 8 14.7 13.1 EPA-Calif 7.7 0.3 25.7 1.6 0.8 21.7 9.6 32. 1 20.4 (1) Defined in Appendix II. 3-6 ------- Table 3-5. Production Car Fuel Economy Study - Composite Results Sales Weighted: No Minimum Number of Cars Per Class: 3 Critical Value of Test Statistic at .05 Significance Level = 3.84146 MEAN FUEL ECONOMIES CLASS 530014020 545035040 550044040 550045440 550045440 640025010 640030420 645035040 645036040 EPA Cert 19.8 13.0 10.8 11.8 11.3 16.6 13.3 15.0 13.3 Calif Title 13 17.8 12. 1 9.0 10.8 10.0 14. 1 12.3 12. 1 11.0 TEST STATISTIC1*' EPA-Calif 8.9 0.8 32. 1 2.1 1.6 22.8 7-7 46.5 19.1 (1) Defined in Appendix II. 3-7 ------- APPENDIX I CALIFORNIA TITLE 13 DATA BASE A listing of the California Title 13 Data Base is given in Table 1-1. Each line of information corresponds to a different car- The format of these data is given in Table 1-2 with additional explanations of the coded information in Table 1-3. In some instances, the engine family designation involved more characters than -were provided for in the standard format. When this occurred, a code for the engine family was put into columns 76 through 79. That code is interpreted in Table 1-4. The occasional "X" which appears in column 80 means that at least one inconsistency in the data was recorded on the original test forms. 1-1 ------- Table 1-1. California Title 13 Data Base HCl 11C1 1101 1101 1101 1 101 1102 11C2 1102 11C2 1 1C2 1103 1103 L1C3 11C3 11C3 11C3 1103 1103 11C4 1104 1104 11C4 11C4 1104 1105 1105 1105 1105 1 105 11C5 1105 1105 1106 11C6 11C6 11C8 1109 1109 1109 1109 1109 1109 1109 76 It 75 74 74 75 76 75 74 75 75 76 76 76 75 74 7"> 75 75 76 75 75 76 74 75 76 76 75 76 76 75 75 75 75 75 74 76 75 76 76 76 74 74 74 2.8 2.3L 2.3L 2.3L 2.8 2.3L 2.31 2.3L 2.8 2.8L 302 3C2 302 302 302 351W 351K 302 351C 351C 4CC 4CC F6T10Y157695F F6R12Z143609 5R11Z104089 4R10Y166079 4R11Y161237 5R12Y142744 F6R02Y131421F 5R12Z104101 4FC3Y243623 5R12Y142711 5R1 1Y144644 F6R12Y134756F F6R04Z142091 F6R042144176 5R05Z106935 F4ROZZ181269F 5R04F145439 5R05F144154 5R04F145450 F6K31F521679 F5K92L112557F F5K91L115473F F6K91L141779F 4K92F179607 5K92F150123 F6W82F227316 F6h82F226347 F5W81L131128F F6W81L186168F F6W82L187436F 5W84H171089 5W83H178285 5H82F2C0424 F5H31S159281F F5J63S128932F 4G21H173565 6G21A160112 F5J62S129230F 6J62H13C818 6J63H130835 6J62H13C093 F4J62H142825 F4J66G141812 F4J565143376 2 2 2 1 1 2 2 2 1 2 2 2 2 2 2 1 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 I 1 1 17. 12. 11. 14. 15. 13. 17. 12. 13. 13. 14. 16. 12. 12. 12. 12. 10. 10. 10. 11. 11. 10. 12. 10. 6. 10. 11. 11. 11. 12. 07. 06. 9. 08. 08. 8. 9. 08. 9. 9. 9. 10. 8. 8. 74 95 47 19 03 91 41 40 64 87 94 15 70 39 37 12 79 58 26 61 34 31 44 45 28 66 06 28 52 45 50 86 70 28 38 88 63 25 70 58 92 78 14 03 18.32 13.25 11.14 15.22 15.96 14.81 16.77 12.03 14.35 14.97 14.38 15.86 12.92 12.32 11.75 11.95 1C. 47 10.28 10.07 11.76 11.36 11.32 12.52 10.90 8.69 10.58 10.86 11.11 11.56 12.48 08.03 08.22 9.64 08.44 08.32 8.90 9.59 08.33 9.71 9.56 10.05 8.81 8.09 8.54 17. 13. 11. 14. 15. 14. 17. 13. 13. 15. 15. 16. 12. 12. 12. 11. 11. 10. 10. 11. 11. 11. 12. 10. 8. 10. 11. 11. 11. 12. C7. C7. 9. 08. 08. 8. 9. 08. 10. 9. 10. 8. 8. 8. 96 24 09 27 06 01 06 26 49 22 33 31 85 42 07 95 05 96 90 71 39 11 74 35 96 68 32 59 63 59 50 58 95 63 34 58 93 11 04 82 25 36 08 54 11110 11110 11110 11200 112CO 11110 11110 11110 112CO 11UO 11210 11110 11110 11110 11110 11200 11110 11110 lino 11110 11110 11110 11110 11200 11110 11110 11110 11110 lino lino 11110 11110 11110 22210 22210 012CO 11110 22210 11110 11110 11110 11200 11200 11200 4COO 0111 0011 cooo 1000 1000 4000 0011 0111 0000 0000 4001 4111 0111 1111 0101 0111 0111 0111 0111 0111 0101 0111 0101 0111 0111 0111 0111 0111 0000 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 140 171 171 140 140 140 140 171 140 140 140 140 171 171 171 171 302 302 302 302 250 250 250 302 302 302 302 250 250 250 351 351 302 400 400 351 460 400 351 351 351 351 400 400 2750 3500 3500 2750 2750 3000 3COO 3500 3000 3000 3000 3000 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 4000 4000 4000 4000 4000 4000 4000 4000 5COO 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 2 2 2 2 1 1 1 2 2 2 2 2 2 4 2 2 2 2 2 2 2 4F 9F 4F 4F 9F 9F 10F 3F 3F 5F 10F 10F 3F 5F 5F 6F 6F 11F 6F 6F 6F 6F 1-2 ------- Table 1-1. California Title 13 Data Base (Continued) 1110 1111 1111 1111 1111 1111 1201 1202 1202 1304 1304 1311 2201 22C3 2204 2204 2204 2204 2204 2205 2205 2206 2206 22C7 2207 2206 2301 2301 2301 2302 2302 2302 2302 2302 2302 2302 2302 2303 2303 2303 2304 2401 2401 2401 74 76 75 74 74 74 75 76 75 75 75 74 75 75 75 75 75 74 74 74 74 74 74 75 75 75 76 76 76 76 76 76 74 74 75 75 75 76 76 76 74 76 76 76 400 460A 460 460 460 460A 460A 351W 302 35 1C 401-4 401-4 402-4 4C2-4 401-4 402-4 61JO 61JO 61JO 61V4 61V4 61V4 501-4 501-4 61V43 61V43 61V43 61VO 61VO 61VO 501-4 11M1V 11W1V UhlV 4J745144113 F6J87A140551 5J87A136730 F4J87A157342F F4J87A157796F F4J87A158935F 5Y81A862062 F6Y89A873583 5Y89A861314 5W37H533335 5W38F540282 4A93H549155 4S07C52115919 4B27C5L110937 4H57J5Z122925 4J57J5Z122892 4E37C5Z114962 4J57J4Z121742 4J57J4Z212032 4R45W4C108090 4R45T4C108362 4N57J4C108359 4P57T4C108355 4X39T5H441238 4X39T5H441288 4R35T5X112258 6S69R6Q459495 6S69R60459412 6S69R6Q459024 6D47S6Q175543 6047S6Q175378 6D47S6Q177463 6047R4A205385 6047R4A202985 6049S5C192145 6D47S5C191381 6049S5C191224 6D49S6Q193541 6047S6C201523 6049S6Q201432 6B69R4A204980 1B08E6Y121584 1B08I6Y119520 1B08I6Y116399 1 7 2 8 2 07 1 07 1 07 1 07 2 08 2 8 2 07 2 07 2 9 1 8 2 14 .70 .76 .62 .32 .68 .36 .37 .69 .94 .10 .34 .62 .20 2 12.44 2 12 2 10 2 11 1 09 1 08 1 06 1 06 1 08 1 06 2 8 2 9 2 8 2 10 2 10 2 10 2 08 2 08 2 08 1 8 1 7 2 9 2 9 2 9 2 08 2 08 2 08 I 7 2 19 2 19 2 20 .10 .65 .80 .56 .86 .47 .21 .60 .56 .39 .46 .89 .43 .58 .32 .82 .59 .95 .25 .87 .06 .33 .24 .87 .18 .61 .84 .29 .24 .96 7. 8. 07. 07. 07. 07. 07. 8. 07. 07. 9. 8. 14. 12. 11. 11. 11. 09. 09. 06. 06. 09. 06. 8. 9. 9. 10. 10. 10. 08. 08. 09. 8. 7. 8. 8. 9. 08. 08. 08. 7. 19. 20. 21. 71 87 55 24 42 39 91 79 56 83 41 55 05 68 54 12 53 39 76 92 53 60 47 83 33 20 40 82 59 88 54 05 67 89 79 96 24 78 51 85 99 54 35 19 8. 8. 09. C7. C7. 07. C7. 9. 08. 07. 9. 8. 14. 12. 12. 11. 11. 08. 09. C6. 06. 08. 06. 8. 9. 9. 11. 11. 11. C9. 08. 08. 8. 8. 9. 9. 9. 08. 08. 08. 8. 19. 20. 21. 16 95 39 25 43 82 87 05 02 49 15 76 47 02 10 54 61 73 25 78 60 80 57 87 41 05 21 49 21 04 71 93 84 45 18 29 76 97 56 87 73 89 47 80 11200 11110 11110 110CO 11000 11000 11110 11110 11110 11110 11110 11200 01111 01111 01110 01110 01111 11100 11100 111CO 11100 11100 111CO 01011 01011 01011 11010 11010 11010 11110 11110 11110 11200 11200 11111 11111 11111 11110 11110 11110 11200 11110 11110 11110 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0110 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0100 1000 0000 400 460 460 460 460 460 460 460 460 351 302 351 231 231 350 350 231 350 350 455 455 350 455 455 455 455 350 350 350 500 500 500 472 472 500 500 500 500 500 500 472 098 085 085 5500 5500 5500 5500 5500 5500 5500 5500 5500 4000 4000 4500 3500 4COO 4500 4500 4000 4500 4500 5500 5500 5000 5500 5500 5500 5500 4500 4500 4500 5500 5500 5500 5500 5500 5500 5500 5500 5500 5500 5500 5500 2250 2250 2250 2 4 4 4 4 4 4 4 4 2 2 2 2 2 4 4 2 4 4 4 4 4 4 4 4 4 0 0 0 4 4 4 4 4 4 4 4 0 0 0 4 1 1 1 11F 11F 7GM 7GM 13GM 13GM 7GM 2GM 2GW 2GM 1-3 ------- Table 1-1. California Title 13 Data Base (Continued) 2402 24C2 2402 2402 2402 2402 24C2 2402 2404 2404 24C4 2405 24C5 24C5 2405 2405 24C5 2405 2405 24C5 2406 2406 24C7 24C7 24C7 24C9 2409 24C9 2409 2410 2410 2412 2412 2412 25C2 25C2 25C2 25C2 25C3 25C3 25C3 ;5C3 2503 25C3 75 75 74 74 74 74 74 74 75 75 75 75 76 76 7t 76 74 74 74 74 7*> 76 75 76 75 75 74 74 74 74 74 76 76 75 75 75 76 74 75 75 74 74 75 75 11C23 11C23 101-2 101-2 101-2 ICl-l 1C1-1 101-1 11G2 11G2 11F1 11F1 1C2-1 102-1 102-1 104-4 11G2 11K4 11K43 11K43 1C4-4 104-4 1C5-4 105-4 IC5-4 11K4 11K4 11K43 31H2J 301-4 3CI-4 301-4 31J43 ?IJ43 1V77B5C109997 IV77B5C109965 1V77B4U298261 1V77B4U298314 1V77B4U305492 1V11A4U301296 1V77A4L304894 1V15A4U305225 IM27H5C247321 1^«27H5C246824 1M27H5C247552 IX69D5L149260 1Y6906L117092 1Y6SG6L117483 1X27D6L123960 1X69D6L124136 IX27D4H95C71 1X2704L195058 IY1704L194960 1X27L4L167396 1Q8705N591513 1C87Q6N540239 1D3705Z454756 1D35L6Z421918 IC35L5Z444878 1N39U5J194043 IL69L4C149202 IN69U4C148487 1L35Y4C148917 1N35Y4C149132 IN45Y4C148899 1H57L6Z422055 IH57L6Z422028 1H57L5Z444872 3B69J5L113306 3S27F5L1115ai 3B17F6L103230 3B27K4L122426 3J57F5R140584 3F37F5R140254 3J57K4R192929 3J57K4R192559 3J29K5R154916 3J57K5R154858 2 2 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 2 1 2 2 1 1 2 2 16.44 15.76 14.85 16.85 13.73 13.87 18.49 19.19 12.31 11. 14 11.69 11.37 11.06 11.00 13.02 12.49 13.67 11.98 11.17 09.79 11.92 11.36 10.81 09.48 9.36 9.41 09.13 07.49 08.03 07.89 07.82 10.29 10.04 9.34 11.61 11.17 12. 1C 9.33 10.30 10.60 9.50 9.50 10.01 10.08 16.40 16.08 15.41 16.00 15.04 13.49 20.28 20.36 11.89 11.48 11.28 11.32 11.35 11.48 13.65 13.15 13.35 11.98 11.01 09.41 11.89 11.65 11.68 09.56 9.72 9.70 08.86 07.39 07.99 07.67 07.72 10.48 10.19 10.13 11.64 12.36 9.78 10.28 10.71 10.01 9.96 10.21 10.15 16. 15. 15. 17. 14. 14. 18. 19. 12. 11. 11. 10. 16 88 90 61 18 33 72 80 04 54 35 98 1 1 0 0 0 0 0 0 1 1 1 1 1110 1110 1200 12CO 11CO 12CO 11CO 11CO 1110 1110 1110 1110 01110 11. 13. 13. 14. 12. 11. C9. 12. 11. 11. C9. 9. 9. 09. C7. 08. C7. C7. C9. 10. 9. 11. 11. 9. 10. 10. 9. 9. 10. 10. 47 25 08 14 28 20 S4 16 81 14 44 47 41 34 61 11 77 73 94 37 16 74 66 45 65 63 62 73 97 81 0 1 1 1 1 1 1 1 0 1 1 1 1 I 1 1110 1110 1110 12CO 12CO 12CO 10CO 1111 1110 1111 1110 1111 1111 10CO 10CO 11000 1 1 1 1 1 0 c 0 0 0 0 0 0 1 1 1CCO 1CCO 1110 1110 1111 1110 1110 1110 11CO 1110 1110 1100 11CO 1010 1010 0000 0100 1100 11CO 1101 0000 1000 1000 0011 0111 0111 coco 0111 0111 0111 0111 1000 0000 C001 0101 0011 C011 0111 0111 0001 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 Olll 0111 140 140 140 140 140 140 140 140 350 350 350 250 305 305 250 250 250 250 250 350 250 305 250 350 350 400 350 400 454 454 454 350 350 350 350 260 260 350 260 260 350 350 350 350 3000 3000 3000 3000 3000 2750 2750 2750 3500 3500 3500 4000 40CO 4COO 3500 4000 3500 3500 4COO 4000 4COO 4000 4COO 5000 5000 5COO 4500 5COO 5500 5500 5500 4500 4500 4500 4000 4000 4000 4000 4500 4500 4500 4500 4500 4500 2 2 2 2 2 1 1 1 2 2 2 1 2 2 1 1 1 1 1 4 1 2 1 4 4 4 4 4 4 4 4 4 4 4 4 2 2 4 2 2 4 4 4 4 6GM 6GH 6GM 9GM 9GM 9GM 13GH 8GM 8GH 8GH 1-4 ------- Table 1-1. California Title 13 Data Base (Continued) 2505 25C5 25C6 2506 2601 2604 2604 2604 2604 2604 26C5 2605 2606 2606 26C6 26C8 26C8 26C9 2609 2609 3001 3CC1 3001 3CC1 3CC3 3CC3 3CC3 3CC3 3CC4 3CC5 3CC5 3CC5 32C1 32C1 3202 32C4 3204 3205 3207 3208 3208 3208 3208 3208 75 75 31J43 75 75 75 11C23 76 31H2J 76 31H2J 76 1LF1 74 201-4 74 201-4 75 76 21K4 75 76 21K4 74 201-4 75 76 21K4 75 75 75 75 75 75 CLA4 75 CLA4 75 75 75 74 RB 75 75 74 RB 74 RB 75 CLA2 75 CLA2 76 76 75 CLA2 74 LA-4 76 75 75 75 75 75 3N39T5X112369 3N39K5X132669 3X37T5M196471 3X37T5P 171754 2V77B5C106344 2Y27F6L103492 2Y17F6L103501 2Y69D6L104678 2Z17B4L131459 2Z17B4L131460 2S87E5N515109 2T87P6N537924 2F37E5P15-0816 2F37P6P201204 2Z17B4L131464 2K57W5P182930 2J57P6P197482 2P49S5X135705 2R49W5X148464 2L45W5X148145 SS22N5R266779 SS22N5R281690 SS22J5R130592 SS22J5R143299 CS23T5C164462 CS23T5C177722 CS41TSC191136 CS23T4C179422 YN23T5C140115 CS46TSC254914 CP46T4D197442 CP46T4D205193 LL29G5G111638 LH41G5R140853 NH41G6B107738 WH41G6A136109 WP29J4A140521 hH23G6G113584 CK41N5C222030 DP43T5D150018 OK41U5C1914C8 CK41U5C1943C1 CK41U5D227622 2 2 2 2 2 2 2 2 1 1 2 2 2 2 I 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 1 1 2 2 2 2 2 1 2 2 2 2 2 2 9.78 8.93 9.31 9.58 18.43 11.16 11.50 11.98 9.00 8.81 10.17 11.72 9.17 10.62 9.01 8.42 10.70 8.93 8.58 7.86 09.48 09.58 10.86 10.31 08.31 08.61 08.02 8.92 07.72 07.95 7.90 8.90 11. CO 10.18 10.77 10.69 10.18 9.13 10.65 08.88 07.63 08.04 07.70 07.71 10. 9. 9. 10. 21. 11. 12. 13. 9. 8. 10. 12. 10. 11. 8. 9. 10. fi. 9. 8. 08. 08. 10. 10. 07. 08. 08. 8. 07. 07. 7. 9. 11. 10. 11. 10. 10. 9. 10. 08. 07. 08. 07. 07. 08 86 79 03 24 11 03 02 78 46 39 04 02 03 79 07 95 99 03 56 74 55 97 24 95 22 00 74 47 S2 65 09 Cl 16 01 66 27 17 48 50 79 05 52 71 9. 9. 9. 9. 18. 11. 8. 8. 10. 12. 9. 11. 9. 8. 8. 8. 7. 10. 09. 11. 10. 08. 08. 08. 8. 07. C7. 8. 9. 10. 10. 10. 10. 9. 9. 10. 08. C7. 08. 08. 08. 75 54 53 96 68 27 74 59 49 12 43 17 01 70 97 64 93 19 04 31 36 02 67 05 90 54 9R 02 08 89 26 71 39 89 49 73 99 87 30 19 13 01011 11010 01011 01011 11110 01110 01110 11110 011CO 011CO 11010 11110 11010 11110 01100 01111 11110 01011 01111 Ollll 11110 11110 11110 11110 11110 11110 11110 111CO 11110 11110 11100 111CO 11110 11110 11110 11110 11110 01100 11110 11110 11110 11110 11110 11110 0111 0111 0111 0111 1100 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0100 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 01 »1 0111 0111 0111 0111 0111 0100 0111 0111 0111 0111 455 350 455 455 140 260 260 250 350 350 350 350 350 350 350 455 350 400 455 455 400 400 360 360 440 440 440 440 140 440 440 440 318 318 318 318 318 3CO 318 400 440 440 440 440 5000 5COO 5000 5000 3000 4000 4000 4000 4CCO 4COO 4000 4000 4500 4500 4000 4500 4500 5000 5000 5500 4500 4500 4500 4500 5500 5500 5500 5000 5500 5500 5500 5500 4000 4500 4000 4500 4500 4500 45CO 5000 5500 5000 5COO 5000 4 4 4 4 2 2 2 1 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 2 2 4 4 2 4 4 4 4 4 3GM 3GM 3GM 1GM 1GM 4GM 1GM 4GW 4GP 4C 4C 5C 2C 2C 5C 2C 1C 1C 1C 4C 5C 3C 3C 3C 1-5 ------- Table 1-1. California Title 13 Data Base (Continued) 3301 33C1 33C1 33C4 3304 33C6 33C6 33C6 3306 41CI 4101 4101 41C2 4103 41C3 4107 41C7 41C7 42C2 42C2 4202 42C2 4202 4203 42C4 42C4 4204 42C4 42C4 42C8 43C1 43C1 43CI 43C4 43C4 4304 43C4 43C5 43C6 43C6 43C6 43C6 4306 43C6 74 RG 74 RG 74 RG 74 LA-4 74 LA-4 75 75 75 7* CLA4 75 N-C82 75 N-082 75 N-C82 75 N-092 75 N-092 75 N-092 75 N-U2 75 N-112 75 N-112 75 2T-C 75 2T-C 76 2T-C 76 2T-C 76 2T-C 75 ?T-C 75 20R 75 20R 75 4K 75 4* 75 4P 75 2CR 75 75 75 75 75 75 74 74 75 75 2 2 2 5 5 5 I I II 31 31 75 31 74 4A 74 4A 74 4A VL29C4B497536 VL29C4B473857 VL29C4B483016 RK41J4A208873 PH41J40205823 DK41U5C232982 PK41U5C225195 OK41U5C227625 PP43J5D134332 HLB210589673 HLB210095057 HLB210591450 JKH.71C027284 JHL710847027 JHL710847099 HL530211996 HL530211943 HL530211026 TE31037186 TE37515043 TF31133646 TE31126289 TE31126210 TE38013170 RT105010505 RT119C09016 PX13020358 HX23012862 KX29018362 RA22047938 1662014079 1152028468 1552014071 22^2061012 2252062709 2252064912 2242140443 4242045771 6252059776 3352102636 3352102760 3242259933 3242254785 3242260166 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 2 1 1 1 13. 13. 15. 10. 9. 07. 07. 07. 9. 20. 20. 21. 18. 16. 17. 14. 14. 14. 19. 18. 18. 17. 17. 19. 15. 15. 14. 14. 13. 14. 21. 20. 20. 14. 16. 15. 14. 16. 20. 20. 19. 19. 20. 20. 59 54 66 09 05 35 69 36 27 19 45 58 19 18 68 07 08 40 14 77 04 50 62 66 70 35 03 94 26 74 75 85 02 76 47 35. 92 92 63 17 80 94 13 09 13 13 15 10 9 07 07 07 9 22 20 23 18 16 17 13 13 13 18 18 18 18 17 19 15 15 13 14 13 15 20 23 19 14 15 15 15 16 21 19 19 18 19 19 .44 .44 .61 .09 .04 .47 .48 .61 .30 .09 .45 .05 .84 .13 .58 .09 .38 .59 .83 .CO .84 .36 .30 .63 .65 .29 .65 .92 .82 .15 .73 .03 .74 .81 .67 .98 .38 .24 .45 .71 .32 .14 .36 .65 13. 14. 16. 10. 9. 07. C9. 07. 9. 22. 19. 21. 19. 15. 17. 13. 14. 14. 18. 18. 18. 17. 18. 15. 15. 13. 14. 13. 14. 21. 21. 20. 15. 15. 15. 15. 16. 22. 19. 20. 18. 20. 20. 80 18 09 04 04 40 07 49 28 30 55 56 17 69 67 49 09 33 97 84 65 74 74 77 79 72 77 29 14 27 49 70 05 06 20 39 90 82 80 30 79 82 CO 011CO 01100 011CO 01100 011CO 11110 11110 11110 11110 11110 11110 11110 11110 11110 11110 01010 01010 01010 11110 11110 10110 1C110 1C110 11110 11110 11110 11110 11110 11110 11110 OHIO 01110 CH10 OHIO OHIO OHIO onco onco 11110 11110 11110 11CCO 110CO 11CCO C101 0101 0000 0111 0111 0111 0111 0111 0111 4010 0010 4010 1000 1000 1000 0010 4010 4010 ococ 4COO 0110 4010 5010 cooo 4010 0010 0111 0111 0111 5110 1000 ocoo 1000 cooo 1000 1000 0100 ooco 4010 0010 0010 1010 C010 0010 225 225 225 360 360 440 440 440 360 85 85 85 119 119 119 168 168 168 097 097 97 97 97 097 133 134 156 156 156 134 97 97 97 109 109 109 109 109 90 90 90 90 90 90 3500 3500 3500 4500 5COO 5000 5000 5000 5000 2250 2500 2250 2750 3000 3000 3COO 3COO 3000 2500 2500 2500 2500 2500 2500 2750 3000 3COO 3000 3COO 2750 2500 2500 2500 2500 3500 3500 3500 2750 2500 2500 2500 2500 2500 2500 I X 1 X 1 X 4 4 4 3C 4 3C 4 3C 4 2 2 2 2 2 2 0 0 0 2 2 2 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 1 1 1 2 2 2 1-6 ------- Table 1-1. California Title 13 Data Base (Continued) 4307 43C8 4308 44C1 4401 4401 4401 4401 44C1 4401 44C1 4401 44C1 4402 4402 4402 44C2 44C2 44C2 4403 44C3 44C3 44C3 44C3 4403 44C3 44C4 44C4 4404 4404 44C4 4405 44C5 44C5 4405 4405 44C5 4405 4405 4405 4405 4405 4405 4405 75 75 75 76 76 76 76 76 74 74 75 75 75 76 76 76 76 76 76 76 76 74 74 75 75 75 76 76 76 76 75 76 76 76 76 76 76 76 76 76 76 76 74 74 32 32 32 r-c [-C [-C t-C [-C [A [A [C [C 1C t-C [-C I-C [-C [-C [-C [I-C [-C [A [[ [C tc 1C -C -C -C -C C -C -C -C -C -C -C v-c v-c I-C I-C I-C 1753187147 5352026772 5352026754 A6R465E116741 A6E465E143525 A6A465E111362 A6A465A247568 A6C465A107114 A4A465E347260 AAA465A331873 A5E465E172340 A5A465E137436 A5C465A228191 A6E667A117267 A6C667A101782 A6A667E247765 A6A667A240208 A6A667A240127 A6A667E251866 A6C037H147382 A6AC57A139791 A4A057A330962 A4C037H351880 A5A067A131094 A5A037A222602 A5A057H213876 A6A087A240706 A6AC87H229423 A6A087h234716 A6C087H238744 A5AC87H109672 A6A167H104089 A6C167H104073 A6A167H104307 A6A857H238230 A6A167H240783 A6A167H229517 A6A167P219038 A6A167P128547 J6A167N111063 A6A167N209176 A6A167N119534 A4A167H350512 A4C167H350530 2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 1 18. 20. 20. 12. 14. 12. 11. 12. 14. 12. 15. 11. 11. 13. 11. 12. 12. 11. 11. 11. 11. 10. 11. 11. 10. 11. 11. 10. 10. 10. 10. 11. 11. 10. 10. 10. 10. 09. 10. 08. 09. 09. 10. 09. 24 20 91 57 07 13 42 06 28 13 01 36 48 53 68 25 26 30 34 72 49 48 09 60 93 25 50 37 05 13 61 02 20 04 16 75 47 17 12 85 69 66 20 86 21 21 20 12 13 12 11 12 13 12 16 12 11 13 11 12 11 11 12 11 11 10 10 12 11 11 11 10 10 10 11 10 11 10 10 10 10 09 10 08 09 09 10 10 .02 .64 .36 .55 .70 .22 .61 .56 .94 .01 .C8 .87 .54 .67 .73 .20 .81 .29 .04 .71 .79 .25 .82 .67 .08 .11 .51 .52 .16 .43 .52 .96 .41 .03 .46 .67 .80 .22 .27 .94 .66 .43 .09 .56 20. 21. 20. 12. 14. 12. 11. 12. 14. 12. 16. 12. 12. 15. 11. 12. 11. 11. 12. 12. 11. 10. 11. 12. 11. 13. 11. 10. 10. 10. 11. 10. 10. 10. 10. 10. 11. C9. 10. C9. 09. C9. 10. 10. 25 10 15 08 17 26 62 49 60 56 12 18 03 38 23 49 85 29 54 77 77 76 24 44 00 82 55 41 23 34 40 86 77 53 21 96 01 19 08 02 63 74 34 10 11110 11110 11110 11110 11110 11110 11110 11110 01100 011CO 11111 11111 11011 11110 11110 11110 11110 11110 11110 11110 11110 OHCO 111CO 11111 11011 11111 11110 11110 11110 11110 11111 11110 11110 11110 11110 11110 11110 11110 11110 11110 11110 11110 110CO 11100 0010 4010 4010 CC01 1000 cooo CC01 0111 coco 0100 1000 0111 0001 1001 0111 cooo C001 0001 0011 0111 0111 0101 0111 0101 C001 0111 0111 0111 0101 0111 0101 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 0111 90 90 90 232 232 232 258 258 232 258 232 232 258 258 258 232 258 258 232 304 258 258 304 258 258 304 258 304 304 304 304 3C4 304 304 304 304 304 360 360 360 360 360 304 304 2250 2250 2250 3500 35CO 3500 3500 3500 3000 3000 3COO 3000 3000 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 3500 35CO 3500 3500 40CO 4000 4000 3500 4500 4500 4500 45CO 4500 4500 4500 4500 4500 4500 4500 4000 4000 2 2 2 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 2 1 2 2 2 2 2 2 2 2 2 2 4 4 2 2 2 2 2 1-7 ------- Table 1-1. California Title 13 Data Base (Continued) 44C5 75 4405 75 4405 75 44C6 76 44C6 7f 44C6 It 4406 76 1C 1C 1C I-C I-C I-C v-c A5C167H1C5631 A5C167H68452 A5A167H206060 A6A887H233205 A6A887H233230 A6A887H233203 A6A887P226924 1 09.18 09.98 1C.C6 11111 I 11.13 10.85 10.53 11111 1 10.54 10.56 10.36 22212 2 09.75 09.91 10.01 11110 2 09.87 10.10 10.35 11110 2 10.19 10.22 10.17 11110 2 09.84 09.76 09.86 11110 0111 0111 0000 0111 0111 0111 0111 304 30A 30* 304 304 304 360 4500 4500 4500 4500 4500 4500 4500 2 2 2 2 2 2 4 0271 CARDS 1-8 ------- Table 1-2. Format of California Title 13 Data Base COLUMNS 1-4 6-7 9-14 16-30 32 34-38 40-44 46-50 52 53 54 55 56 60 61 62 63 65-67 69-72 74 *See Table 1-3 DATA Model Code* Model Year Engine Family Vehicle ID Test Type* mpg mpg \ Repeat Tests mpg Air EGR EM CAT FE Transmission Type* Air Conditioned Power Brakes Power Steering CID Test Weight (lb) Carburetion* Devices* Accessories* 1-9 ------- Table 1-3. California Title 13 Data Base Codes Model Code - See Below (Ex: Dodge Coronet = 3204) Type Test CVS-1=1 (Urban, 1972) CVS-H=2 (Urban, 1975) Devices Air = Air injection EGR =Exhaust gas recirc. EM=Engine Modification CAT=Catalyst or OC FE=Fuel Evaporization or EFE 0=Not installed ^Installed 2=Not recorded Transmission 0=Automatic l = Manual - undefined 3 = Manual 3 speed primary on U.S. cars 4 = Manual 4 speed primary foreign, Opt. U.S. 5=Manual 5 speed Optional on foreign, U. S. Accessories 0 = No l = Yes 2 = Not recorded (no summary sheet) Carburetion (Venturi) 0=Fuel Injection 1= 1 BBL 2= 2 BBL 4= 4 BBL 5= Undefined 1-10 ------- Table 1-3. California Title 13 Data Base Codes (Continued) Manufacturer AMC 4 Division AMC 4 Model 01 Gremlin 02 Pacer 03 Hornet 04 Hornet Wgn. 05 Matador 06 Matador Wgn. 07 Arnbassador 08 Ambassador Wgn. 09 Javelin Chrysler 3 Chrysler 0 01 Cordoba 02 Newport 03 New Yorker 04 Imperial 05 Town & Country Wgn. Dodge 2 01 Dart 02 Aspen 03 Aspen Wgn. 04 Coronet 05 Charger 06 Coronet Wgn. 07 Charger S. E. 08 Monaco 09 Monaco Wgn. Plymouth 3 01 Valiant (Scamp, Duster) 02 Volare 03 Volare Wpn. 04 Satellite (1975 Fury) 05 Satellite (1975 Fury) Wgn. 06 Fury (1975 Gran Fury) 07 Fury (1975 Gran Fury) Wgn. I-il ------- Table 1-3. Manufacturer Ford California Title 13 Data Base Codes (Continued) Di vi s ion Ford Model 01 Pinto 02 Pinto Wgn. 03 Mustang II 04 Maverick 05 Granada 06 Torino 07 Torino Wgn. 08 Elite 09 Ford (Gust. 500, Galaxy, LTD) 10 Ford Wgn. 11 Thunderbird Lincoln 2 01 Continental 02 Continental Mk IV Mercury 3 01 Bobcat 02 Bobcat Wgn. 03 Comet 04 Monarch 05 Montt'go 06 Monte^o Wgn. 07 Monterey 08 Monterey Wgn. 09 Marquis 10 Marquis Wgn. 11 Cougar General Motors Buick 2 01 Skyhawk 02 Apollo 03 Skylark 04 Century/Regal 05 Century Wgn. 06 Le Sabre 07 Electra 08 Estate Wgn. 09 Riviera 1-12 ------- Table 1-3. California Title 13 Data Base Codes (Continued) Manufacturer General Motors 2 Division Cadillac 3 Model 01 Seville 02 Calais/Devtlle. 03 Eldorado 04 Fleetwood Brougham 05 Fleetwood 75 Chevrolet 4 Oldsmobile 5 01 Chevette 02 Vega 03 Vega Wgn. 04 Monza 05 Nova 06 Camaro 07 Chevelle (Malibu, Laguna) 08 Chevelle Wgn. 09 Chevrolet (Caprice, Impala, Bel Air) 10 Chevrolet Wgn. 11 Corvette IZMonte Carlo 01 Starfire 02 Omega 03 Cutlass 04 Cutlass Wgn. 05 Delta 88 06 Ninety-Eight 07 Cust. Cruiser Wgn. 08 Toronado Pontiac 6 01 Astre 02 Astre Safari 03 Sunbird 04 Ventura 05 Firebird 06 Lemans 07 Lemans Wgn. 08 Grand Prix 1-13 ------- Table 1-3. California Title 13 Data Base Codes (Continued) Manufacturer Di vis ion MochJ 09 Pontiac ( Bonncville, Catalina, Grandville) 10 Pontiac Wgn. 11 Grand Am 12 Trans Am N issan 4 Datsun 1 01 B-210 02 710 03 710 Wgn. 04 610 05 610 Wgn. 06 260Z 07 280Z Toyota 4 Toyota 2 01 Corolla 1200 02 Corolla 1600 03 Corolla 1600 Wgn. 04 Corona 05 Corona Wgn. 06 Mk II 07 Mk II Wgn. 08 Celica Volkswagen 4 Volkswagen 3 01 Beetle 02 Ghia 03 Thing 04 Van 05 412 06 Dasher 07 Rabbit OB Scirocco 1-14 ------- Table 1-4. Engine Family Code COLUMNS 76-79 CODE FOR ENGINE TYPE 1C 2C 3C 4C 5C 1GM 2GM 3GM 4GM 5GM 6GM 7GM 8GM 9GM 11GM 12GM 13GM 3F 4F 5F 6F 7F 8F 9F 10F 11F CD-318-2-P5S C-RB-CAP-II C-RB -HP-CAP C-B4-CAP C-RB-CAPH 21K43-F 41S43/0 31S43F/0 21S43E/0 61V43 11J23A/0 41E23/0 31H23E/0 11F13A/0 61JO 31J43 41J43/0 250 (ICEE) (Trucks, Vans) 2.3 (ICEF) 250 (1 CEF) 351 m/400 (2 GET) 2. 3L 302 2. 8L (2CEF) 302 "A" (ICEF) 460 "A" (2CMT) 1-15 ------- APPENDIX II FORMULAS FOR HARMONIC MEAN FUEL ECONOMY AND THE TEST STATISTIC FOR EVALUATING DIFFERENCES IN FUEL ECONOMY The following was extracted from Appendix III of the U.S. Environ- mental Protection Agency report EPA 460/2-74-001. II. 1 HARMONIC MEAN FUEL ECONOMY HMFE = (II-1) mpg where N mpg. N = number of cars per class mpg. = miles per gallon for ith car in a class II. 2 TEST STATISTIC It can be shown that the following quantity is distributed as a chi- square with a level of confidence and one degree of freedom: \ G = i i v 1 , ._ I 1 *? , sl ,N, x mpg, N0 x mpg 4 ?> / (II-2) II-1 ------- where NJ NT = number of cars in Jth class mpgj = mpg for Jth class II-2 ------- TECHNICAL REPORT DATA (Please read Inunctions on the reverse before completing} 1 REPORT NO. EPA-460/3-76-027 3. RECIPIENT'S ACCESSION NO. 4. TITLE AND SUBTITLE Analysis of Production Cars' Fuel Economy 5. REPORT DATE October 1976 6. PERFORMING ORGANIZATION CODE 7. AUTHOR(S) Dr. Ronald F. Janz 8. PERFORMING ORGANIZATION REPORT NO. ATR-77(7358-03)-l 9. PERFORMING ORGANIZATION NAME AND ADDRESS The Mobile Systems Group Environment and Energy Conservation Division The Aerospace Corporation El Segundo, California 10. PROGRAM ELEMENT NO. 11. CONTRACT/GRANT NO. 68-01-0417 12. SPONSORING AGENCY NAME AND ADDRESS EPA Office of Air and Waste Management Office of Mobile Source Air Pollution Control Emission Control Technology Division Ann Arbor, Michigan 48105 13. TYPE OF REPORT AND PERIOD COVERED 14. SPONSORING AGENCY CODE 15. SUPPLEMENTARY NOTES 16. ABSTRACT Harmonic mean fuel economies, in miles per gallon, were computed for nine carline classes which were common to the California Title 13 Data Base and the U. S. Environmental Protection Agency (EPA) Certification Test Data Base for 1975 and 1976 model years. The parameters used to define a carline class were: model year, inertia weight, cubic inch displacement, number of carburetor barrels, and transmission type. Both urban and highway fuel economies determined from the California Title 13 data were found to be consistently lower (urban: 5 to 19%; highway 6 to 23%) than corresponding fuel economies determined from the EPA certification data. These differences may be at least partially explained by the typical mileage accumulation of 20 to 120 miles for the California tested cars compared to the 4, 000 miles accumulated on the EPA prototype certification test vehicles. KEY WORDS AND DOCUMENT ANALYSIS DESCRIPTORS b.lDENTIFIERS/OPEN ENDED TERMS c. COSATI Field/Group Motor Cars Fuel Economy 13F 8. DISTRIBUTION STATEMENT Unlimited 19. SECURITY CLASS (This Report) Unclassified 21. NC 34 20. SECURITY CLASS (Thispage) Unclassified 22. PRICE EPA Form 2220-1 (9-73) ------- |