EPA-AA-TEB^80-20
Exhaust Emissions from Twenty
Light Duty Diesel Trucks
by
John C. Shelton
August 1980
Test and Evaluation Branch
Emission Control Technology Division
Office of Mobile Source Air Pollution Control
U. S. Environmental Protection Agency
-------
Abstract
This paper describes the results of an exhaust emission testing program con-
ducted for EPA by Automotive Testing Laboratories. Twenty diesel-powered
light-duty trucks were tested. Gross vehicle weight ratings for these trucks
ranged from 5300 to 6200 Ibs. The primary purpose of this program was to
provide data to establish emission factors for light duty diesel-powered
trucks. Secondary objectives included an assessment of the emission dura-
bility of the engines and an evaluation of fuel economy.
The test vehicles were randomly selected from the general public in the St.
Louis area using direct appeals to individual owners and referrals from other
test participants. The test sequence included the Federal Test Procedure, the
Highway Fuel Economy Test and several short tests. Mass emissions were also
measured during individual steady state and transient modes of operation. The
work was conducted during March and April of 1980.
The average emission test results were very low and similar to those from
diesel engines in passenger cars. It appears that diesel engines in light
duty truck service demonstrate virtually no emission deterioration while
in-use over their "useful life" although two engines required major engine
rebuilding before 50,000 miles.
-------
Introduction
The diesel engine has long been recognized as a fuel-efficient and durable
powerplant. However, its use in light-duty trucks and passenger cars has been
limited because of a number of factors: primarily weight, noise and cost.
Prior to the 1976 model year, there were no major American manufacturers
involved in the production of light-duty diesel trucks. The changing economic
and political situations, especially with regard to the cost and availability
of crude oil as well as fuel economy legislation, has made this concept more
feasible. Since their introduction in 1978, General Motors 5.7 liter (350
CID) diesel engines have received wide acceptance both as a light duty truck
and passenger car engine.
Purpose
The purpose of this program was to gather data on in-use light-duty diesel-
powered trucks. These data will provide needed information to establish
emission factors, assess the emission durability of these types of vehicles,
and measure their fuel economy.
Program Design
This program was similar in design to larger emission factor projects in that
vehicles were selected from the general public and tested in as-received
condition. Due to the difficulty in determining which light-duty trucks were
diesel-powered, the vehicles were solicited by means of media advertising and
referrals from other participants.
The following incentives were offered to the owner of candidate vehicles:
1. A $50 U. S. Savings Bond
2. The use of a late-model leaner vehicle during the period of the test
3. A full tank of fuel for the test vehicle upon return to its owner.
The test vehicles were delivered to the laboratory by their owners. During
vehicle check-in, the truck was examined to confirm its compliance with sample
specifications and to assure its suitability for testing. Following this
inspection, vehicle exchange agreements were completed. An EPA-furnished
questionnaire, which sought information about vehicle usage and maintenance
frequency, was administered to the owner. Prior to testing, each test vehicle
was drained, refueled to 40% of tank capacity, preconditioned and driven to
the soak area. Each vehicle remained in the soak area with its engine off for
between twelve and twenty-four hours. The temperature of the soak area was
maintained between 68°F and 86°F.
Each vehicle was tested according to to the following test sequence.
1. Federal Test Procedure (FTP)
2. Highway Fuel Economy Test (HFET)
-------
3. Three Short Cycle Tests (Federal Short Cycle, Idle test, Federal
Three Mode test)
4. Modal Test (Steady States and Accel/Decel sequence)
After testing was completed, an inspection of emission-related components was
conducted. The vehicle was then refueled to capacity and returned to its
owner.
Vehicle Testing Procedures
Federal Test Procedure (FTP) - The FTP for diesel-powered vehicles was con-
ducted in general accordance with the light-duty diesel test procedure des-
cribed in 40 Federal Register 126. It differs from the FTP for gasoline-
powered vehicles in that a heated FID was used for measurement of hydrocarbon
emissions. A remote CVS dilution air filter assembly was situated as close to
the vehicle as possible (replacing the CVS filter installed in the constant
volume sampler). The heated FID continuously measured exhaust hydrocarbons
immediately downstream of the diesel exhaust/dilution air mixing point. These
continuous measurements, which were averaged over each test segment, were used
in place of hydrocarbon measurements from the CVS sample bag. The dynamometer
inertia weight setting used was the same as used by the manufacturer for
certification. The actual dynamometer horsepower was derived from the frontal
area for each vehicle supplied to EPA by the manufacturer. The results of the
FTP on individual vehicles are listed in Appendix A. The heated FID, remote
dilution air box and continuous diesel exhaust hydrocarbon sampling procedures
were also used for the Highway Fuel Economy Test and the Federal Short Cycle
Test.
Highway Fuel Economy Test (HFET) - The HFET followed the FTP with the engine
at normal operating temperature. The vehicle was first preconditioned on the
dynamometer at 50 mph for three minutes. Within one minute of the end of
preconditioning, the truck was brought to idle and the test begun. One sample
was taken during the HFET which is 765 seconds long and covers 10.2 miles.
Fuel economy was calculated from emission results using the carbon balance
equation. Load settings and inertia weights were identical to those used for
the Federal Test Procedure. Results of this test are listed in Appendix B.
Modal Testing - The modal exhaust emission measurements were made up of two
separate tests: steady states sampled at idle and 5, 10, 15, 30, 45, and 60
miles per hour and the Surveillance Driving Sequence which consists of thirty-
two accel/decel modes each of which is separated by a constant speed mode.
Load settings and inertia weights were identical to those used for the Federal
Test Procedure. Idle and steady state results for each vehicle are listed in
Appendix C. Table 4 contains a summary of the thirty-two accel/ decel modes.
The individual results for the SDS are contained in the final report on the
overall program (reference 1).
Federal Short Cycle Test Procedure - The Federal Short Cycle Test was per-
formed on all vehicles. This nine mode test is 125 seconds long and covers a
distance of 0.75 miles. Inertia weight, horsepower'loads, and manual trans-
mission shift points were the same as prescribed for the Federal Test Pro-
cedure.
-------
The test was preceded by a six-minute idle period with the engine compartment
open. At the end of the six-minute idle, the test was started. These results
are listed in Appendix D.
Idle Test Procedure - For this test, undiluted tailpipe exhaust is sampled
using portable analyzers with the engine at idle and the transmission in
neutral. Equilibrium of engine rpm and the undiluted CO, HC and NO readings
were maintained before the readings were recorded. The Idle Test was preceded
by a six-minute soak at idle with the engine compartment open. Results from
this test are listed in Appendix E.
Federal Three Mode Test Procedure - For the Three Mode Test, undiluted tail-
pipe exhaust was sampled during three steady state operating conditions; high
speed, low speed and idle. The dynamometer load simulated the average power
which occurs at the appropriate speed on the FTP, with all light-duty vehicles
being grouped into weight classes. The inertia weight was set at 1750.
Dynamometer load was set a specified horsepower for the high speed mode and a
different horsepower for the low speed mode. A six-minute soak with the
engine compartment open and engine idling preceded the Three Mode Test.
Discussion
Test Results - Complete FTP and HFET results for each truck are attached as
Appendices A and B, respectively. Average results are displayed as histograms
in Figure 1. Except for HC results on one truck, all FTP emission values are
within the 1979 Federal Standards. This is quite remarkable considering that
four of the trucks were certified by the heavy duty test procedure and six of
the trucks by the less stringent 1977-78 light duty test procedure which
allowed lower dynamometer horsepower settings. Average exhaust emission
results by model year and trucks meeting 1979 Federal Standards are attached
as Table 1. The average emission levels of these trucks compare closely to
results of other testing on diesel passenger cars performed in the FY75 and
FY77 Emission Factors Programs. They also compare closely with the twenty
1978 Oldsmobile Diesels tested at EPA's lab in Ann Arbor earlier this year.
In the FY77 program, a total of nineteen Mercedes-Benz and one Peugeot diesel
passenger cars were tested. In the FY75 EF diesel testing, all twenty were
Mercedes-Benz. The model years ranged from 1964 to 1977 for the FY75 and FY77
EF Programs. Listed in Table 2 are the average emission values of: 1) FY78
EF Diesel Trucks, 2) EPA Olds Diesel Cars, 3) the vehicles tested in the FY75
and FY77 Emission Factors Programs.
Short cycles - The data generated from the Federal Short Cycle, Two Speed
Idle, and the Federal Three-Mode test showed very low emissions with little
variance from vehicle to vehicle. The complete short cycle results are at-
tached as Appendices D, E and F.
Fuel Economy - Miles-per-gallon (mpg) figures over both the FTP and HFET were
calculated for each test. Due to the fact that the test horsepower for all
trucks tested were determined by the frontal area method applicable to only
1979 and later models, it was only possible to compare the test results of the
1979's with the EPA Gas Mileage Guide. Ten 1979 Chevrolet and GMC Trucks were
in this category. The average values are displayed in Figure 2. The test
results showed that they averaged about 93% of the Guide's FTP values and 88%
of the HFET. The questionnaire completed by each of these owners included
questions which asked for the owner's estimate of the vehicle's fuel economy
under city, highway, and combined driving conditions.
-------
Of those that responded, the owners' figures were 103% of the Guide values for
the FTP, 86% for the HFET, and 91% for the combined mileage values. Responses
of the owners were also compared to the actual test numbers generated in this
program. In this case, the owner's estimates were 110% of the FTP, 98% of the
HFET, and 102% of the combined. The fuel economy on individual vehicles are
listed in Table 3. The HFET emission results along with the emission test
parameters are listed in Appendix B.
Participant Profile - Most owners were satisfied with the performance of their
vehicle's engine although some had experienced major problems with internal
engine parts, injector pumps, injectors, transmission and cooling lines, as
well as oil leaks. Two trucks required major engine rebuilding before
50,000 miles.- All except one felt that they had maintained their vehicles in
accordance with manufacturer's recommendations. A listing of these responses
is attached as Appendix G.
Conclusions
Based on the results of this effort, it appears that these diesel engines
exhibit low exhaust emission levels with no significant deterioration. Some
shortfall in fuel economy was noted although the owners' estimates were con-
sistent with the actual values from the test.
References;
1. "Study of Emissions from 1975-1979 Light Duty Trucks", EPA-460/3-80-008
March, 1980
-------
Figure 1
Testing of 1977-1979 Diesel Trucks
20 Trucks
IOC-
'S, 75-
Oj
0)
.H
O.
to
45% .M
_ f.ny
<*IU jj
c
(U
1 07 PL,
3/Q
J^^~ \ 1
0 .6 1.2 1.8 3.3
FTP HC (gm/mile)
a.
co
65% "g
4-1
(U
u
M
(U
PH
15%
-- -- 5% 5% 5% 5%
I 1
1.0 2.0 3.0 4
FTP CO (gm/mile)
100-
75- 70%
H
1 50-
o
w ?S
C °-
a 10%
(^ 0 1 I
locr
75.
50
25.
0
100-j
75_
50_
25-
.0
20%
45%
,-. 20% 15%
o
5%
16 17 18 19 20 21
FTP FE (mpg)
35%
25% 25%
10% SZ
1
20 21 22 23 24 25
HFET (mpg)
1.0 1.5 2.0 2.5
FTP NOxc (gm/mi)
-------
Figure 2
AVERAGE FUEL ECONOMY FOR 10 1979 MODEL YEAR
.CHEVROLET AND CMC TRUCKS ENGINE FAMILY 932J9
25
25
20
i15
d--
o
es
w
w 10
19.5
CITY
HIGHWAY
OWNER PERCEIVED FUEL ECONOMY
TEST FUEL ECONOMY (FTP, HFET)
FUEL ECONOMY GUIDE VALUES
22
20.0
COMBINED
-------
TABLE 1
EXHAUST EMISSION TEST RESULTS FOR DIESEL TRUCKS
ST. LOUIS DIESELS
MODEL YEAR
1979 FEDERAL TEST PROCEDURE
HC CO C02
AVERAGE
VEH ODOM
FUEL ECONOMY
NOXG FTP HFET
1975
1976
1977
1978
1979
0
0
2
8
10
66289
30109
9593
2.40
0.80
0.63
TOTAL
3.20 476.2 1.91 20.82 24.10
1.91 560.6 1.79 17.97 21.82
1.76 569.8 1.79 17.71 21.98
20 23469 0.87 1.97 556.8 1.80 18.09 22.11
EMISSION RESULTS ARE IN GRAMS PER MILE
FUEL ECONOMY IS IN MILES PER GALLON
DIESEL TRUCKS MEETING 1979 FEDERAL STANDARDS
MODEL YEAR
1975
1976
1977
1978
1979
NO.
VEH
0
0
2
8
10
HC
<1.7 gm/mi
~NO. PCT
1
8
10
50
100
100
CO
<18 gm/mi
~NO. PCT
2
8
10
100
100
100
NOXC
<2.3 gm/mi
~NO . PCT
2
8
10
100
100
100
PASSED
ALL THREE
NO. PCT
1
8
10
50
100
100
TOTAL
20 19 95 20 100
20 100
19 95
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10
Table 2
Average Test Results
FTP (gm/mi) Fuel Economy (mpg)
N
20
20
20
20
Odometer
23469
48194
76473
86318
HC
.87
.83
.80
1.12
1
1
2
2
CO
.97
.63
.2
.9
NOx
1
1
1
1
.80
.40
.60
.43
FTP
18
21
23
24
.1
.3
.9
.2
HFET
22
31
29
31
.1
.3
.8
.3
FY78 E.F. Trucks
EPA Olds Cars
FY75 E.F. Cars
FY77 E.F. Cars
The data generated from the short cycle tests showed very low emissions
with little variance from vehicle to vehicle. Complete short cycle results
are attached as Appendices D, E, and F.
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Table 3
Listing of Fuel Economy on Individual Trucks
Veh.
No.
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
Model
Year
1978
1978
1977
1979
1978
1977
1979
1978
1979
1979
1978
1979
1979
1979
1978
1979
1979
1979
1978
1978
Make
CMC
Chev
IH
CMC
Chev
IH
Chev
IH
Chev
CMC
MERB
CMC
Chev
CMC
CMC
Chev
Chev
CMC
Chev
CMC
Model
C150
CIO
Scout
C150
CIO
Trav
CIO
Scout
CIO
C150
207D
C150
CIO
C150
C150
CIO
CIO
C150
CIO
C150
CID
350
350
198
350
350
198
350
198
350
350
146
350
350
350
350
350
350
350
350
350
Idle
154.1
112.5
339.8
112.2
135.9
314.8
136.5
294.4
114.4
120.3
342.1
104.5
111.7
120.4
114.7
112.8
113.1
118.2
139.5
113.9
5 mph
8.7
10.7
26.4
9.5
12.0
23.4
11.9
20.2
10.0
10.4
14.6
9.0
9.6
10.5
10.1
9.7
9.5
10.2
13.2
9.8
Miles
10 mph
17.6
19.9
26.5
18.7
19.3
21.6
16.9
21.4
17.6
19.4
24.4
17.3
18.0
22.2
19.4
18.3
20.1
17.6
16.8
20.9
per Gallon
15 mph
25.4
28.1
23.3
27.5
27.3
18.9
24.5
31.1
26.1
28.5
21.5
25.3
25.0
25.3
19.8
25.9
26.9
25.5
25.0
25.9
(minutes per gallon for idle)
30 mph
24.7
32.3
30.1
31.1
31.1
26.6
28.7
32.7
30.1
32.0
25.9
29.4
27.9
29.1
26.4
29.9
30.5
30.0
29.3
29.9
45 mph
25.0
26.4
29.7
25.6
26.3
31.9
23.9
25.1
26.1
26.7
26.4
25.2
23.6
25.1
25.9
25.8
25.5
26.2
24.6
24.9
60 mph
20.7
21.0
21.3
20.1
20.6
22.2
18.9
18.2
20.1
21.7
18.3
20.1
19.4
19.8
20.4
20.7
19.3
21.1
17.4
18.9
FTP
16.3
18.2
20.9
17.9
18.1
20.8
17.4
20.6
18.7
18.7
19.3
16.4
17.0
17.9
17.5
17.6
18.0
17.9
17.0
17.5
HFET
22.4
23.2
23.4
22.2
23.1
24.8
21.1
21.2
22.5
23.5
21.4
21.8
20.7
21.9
22.3
22.1
21.8
22.4
20.1
21.2
Harmonic mean
136.9 11.3
19.4
25.0
29.2
25.9
19.9
18.1
22.1
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12
Table 4
Summary Of ModcJ. Results on Diesel Trucks (Legend)
SURVEILLANCE DRIVING SEQUENCE
Mode
No Type Speed Range
(raph)
Average Accel-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Accel
Decel
Accel
Accel
Accel
Decel
Accel
Decel
Accel
Decel
Accel
Decel
Accel
Decel
Decel
Decel
Accel
Decel
Accel
Decel
Accel
Decel
Accel
Accel
Decel
Decel
Accel
Decel
Accel
Accel
Decel
Decel
0-30
30-0
0-15
15-30
30-45
45-30
30-60
60-45
45-60
60-15
15-60
60-0
0-60
60-30
30-15
15-0
0-45
45-15
15-45
45-0
0-60
60-0
0-30
30-60
60-30
30-0
0-60
60-0
0-30
30-60
60-30
30-0
Time in Mode
(sec)
12
16
8
11
13
12
17
12
14
30
26
21
32
23
9
8
22
16
18
19
25
28
15
25
18
10
38
35
18
21
14
13
Average Speed
(mph)
18.05
16.66
9.04
23.07
37.65
38.05
45.80
51.48
52.54
40.40
43.42
33.83
37.27
46.86
23.18
7.81
28.85
31.33
30.55
24.72
38.28
33.88
17.73
45.14
47.23
15.99
38.01
33.87
17.73
44.55
46.63
16.40
eration Rate
(mph/sec)
2.50
-1.88
1.88
1.36
1.15
-1.25
1.76
-1.25
1.07
-1.50
1.73
-2.86
1.88
-1.30
-1.67
-1.88
2.05
-1.88
1.67
-2.37
2.40
-2.14
2.00
1.20
-1.67
-3.00
1.58
-1.71
1.67
1.43
-2.14
-2.31
Distance
(miles!
0.0602
0.0741
0.0201
0.0705
0.1360
0.1268
0.2163
0.1716
0.2043
0.3367
0.3136
0.1973
0.3313
0.2994
0.0579
0.0173
0.1759
0.1392
0.1528
0.1304
0.265"
0.263"
0.0737
0.313"
0.2362
0.04"-;
0.4009
0.3292
0.0866
0.2599
0.181]
0.0592
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13
Table 4
Summary of Modal Results on Diesel Trucks
19 Trucks
Mode -Emission Results (gin/mi)-
NO. HC CO C02 NOX MPG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1.04
1.00
1.79
1.01
.68
.56
.60
.60
.62
.71
.60
.76
.65
.65
.76
1.96
.80
.64
.69
.75
.62
.70
1.18
.58
.61
.99
.61
.74
1.19
.60
.59
.94
2.88 )
1.61
3.89
2.07
1.51
1.05
2.12
1.40
1.84
1.16
2.09
1.33
2.28
1.14
1.25
3.25
2.15
1.14
1.96
1.34
2.54
1.51
2.77
1.73
1.13
1.73
1.97
1.35
2.65
1.96
1.20
1.68
1069.7
258.6
1088.8
673.7
618.2
195.3
828.8
281.0
679.7
202.2
858.1
214.1
906.1
206.1
204.5
500.6
890.2
169.2
781.5
197.7
996.5
223.0
955.9
710.0
209.5
266.8
803.2
223.4
861.7
765.3
218.8
258.3
3.27
1.31
3.73
2.59
2.26
1.12
2.43
1.46
2.29
1.10
2.55
1.21
2.83
1.15
1.17
2.21
2.89
.98
2.61
1.08
2.81
1.19
3.37
2.37
1.17
1.45
2.68
1.19
3.21
2.39
1.23
1.36
9.4
38.5
9.2
15.0
16.3
51.2
12.2
35.7
14.9
49.3
11.8
46.6
11.2
48.5
48.7
19.9
11.4
58.8
12.9
50.3
10.2
44.7
10.6
14.2
47.7
37.3
12.6
44.7
11.7
13.2
45.7
38.6
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14
APPENDIX A
LISTING OF FEDERAL TEST PROCEDURE RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH. MOOL
NO. YEAR MAKE MODL CID
TEST TYPE
~ EMISSION RESULTS (gm/mi)
HC
CO
CO-
N
1392 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CQ BASE HOT TRANS
ICO [spec]: N/A ?CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1393 1971 CMC C150 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1394 1971 CHEV C10 350 BASE COLD TRANS
IHC: 3 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1395 1971 CMC C150 350 BASE COLD TRANS
IHC: 6 ppm hexane BASE COLD STABI
ICO [act]: 0.0 %CQ BASE HOT TRANS
ICO [spec]: N/A -%CQ BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
xc
1.40
1.29
0.82
1.18
DIESEL
0.74
0.75
0.48
0.67
DIESEL
1.99
1.62
1.27
1.60
DIESEL
0.78
0.54
0.54
0.59
DIESEL
2.
2.
1.
2.
1.
1.
1.
1.
3.
2'.
3-
1.
1.
1.
1.
4
1
8
1
6
8
4
6
4
3
6
1
9
6
7
648.
535.
536.
558.
647.
553.
518.
563.
704.
556.
563.
588.
658.
560.
546.
576.
5
2
2
8
2
9
7
9
5
0
8
8
7
1
9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
.35
.50
.39
.44
.79
.83
.64
.77
.42
.37
.29
.35
.66
.80
.61
.72
FUEL
ECON
MPG
.
18.76
18.79
17.99
15.60
18.20
19.48
17.91
14.20
17.95
17.82
17.00
15.32
18.00
18.49
17.50
-------
15
APPENDIX A
LISTING OF FEDERAL TEST PROCEDURE RESULTS ON INDIVIDUAL VEHICLES
VEH. MODL
NO. YEAR MAKE MODL CID
ST. LOUIS DIESELS
EMISSION RESULTS (gm/mi)
TEST TYPE HC CO C02 NOXC
FUEL
ECON
MPG
1376 1971 CMC C150 350 BASE COLD TRANS
IHC: 3 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT 'TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1377 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
+1378 1971 IH SCOU 198 BASE COLD TRANS
IHC: 22 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [soec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1379 1971 CMC C150 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CQ BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
+1380 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CQ BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
+1381 1971 IH TRAV 198 BASE COLD TRANS
IHC: 31 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS:. HFET, SHORT TESTS, MODAL,
1382 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
+1383 1971 IH SCOU 198 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1.01
0.91
0.63
0.86
DIESEL
1.11
0.77
0.63
0.80
DIESEL
1.35
1.67
1.16
1.47
DIESEL
0.82
0.62
0.45
0.62
DIESEL
1.23
1.08
0.81
1.03
DIESEL
2.25
4.09
2.67
3.33
DIESEL
0.54
0.51
0.40
0.49
DIESEL
0.33
0.19
0.22
0.22
DIESEL
2.
2.
1.
2.
2.
2.
1.
2.
2.
2.
2.
2.
1.
1.
1.
1.
2.
2.
1.
1.
3.
3.
3.
3.
2.
1.
1.
1.
1.
1.
1.
1.
2
1
7
0
3
0
8
0
8
8
6
8
8
7
4
6
2
0
7
9
7
9
6
1
8
6
8
4
2
2
2
724.
603.
.565.
617.
632.
537.
529.
554.
544.
454.
476.
479.
653.
541.
541.
564.
673.
523.
532.
556.
497.
475.
450.
473.
694.
551.
555.
581.
598.
449.
490.
491.
6
3
3
9
8
1
7
8
4
7
3
0
9
0
7
1
5
1
4
6
1
8
9
4
2
3
8
9
I
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
1
1
1
1
2
2
2
2
.80
.90
.71
.83
.65
.73
.62
.68
.65
.85
.60
.74
.74
.78
.73
.76
.63
.68
.55
.64
.08
.16
.96
.09
.71
.85
.65
.77
.43
.20
.25
.26
13.92
16.70
17.85
16.31
15.90
18.75
19.04
18.16
18.40
21.91
21.02
20.85
15.43
18.65
18.66
17.88
14.95
19.21
18!08
19.95
20.56
21.92
20.78
14.55
18.31
18.20
17.36
16.90
22.53
20.64
20.60
-------
16
APPENDIX A
LISTING OF FEDERAL TEST PROCEDURE RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH. MODL
NO. YEAR MAKE MODL CID
TEST TYPE
EMISSION RESULTS (gra/mi)
HC
CO
C0:
NO
xc
1384 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD, STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1385 1971 CMC C150 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A- %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1386 1971 MERE 207D 146 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CQ BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1387 1971 CMC C150 350 BASE COLD TRANS
IHC: 3 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1388 1971 CHEV C10 350 BASE COLD TRANS
IHC: 3 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1389 1971 CMC C150 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A *CO BASE 75 FTP
OTHER TESTS:. HFET, SHORT TESTS, MODAL,
1390 1971 CMC C150 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 ?CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
1391 1971 CHEV C10 350 BASE COLD TRANS
IHC: 0 ppm hexane BASE COLD STABI
ICO [act]: 0.1 %CO BASE HOT TRANS
ICO [spec]: N/A %CO BASE 75 FTP
OTHER TESTS: HFET, SHORT TESTS, MODAL,
0.73
0.69
0.46
0.64
DIESEL
0.78
0.52
0.33
0.52
DIESEL
0.69
0.49
0.27
0.47
DIESEL
0.67
0.58
0.40
0.55
DIESEL
0.80
0.54
0.41
0.56
DIESEL
0.73
0.57
0.41
0.56
DIESEL
0.95
0.87
0.53
0.79
DIESEL
0.48
0.61
0.44
0.54
DIESEL
2.
2.
1.
2.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
1.
1.
1.
2.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1.
1
1
7
0
7
5
5
6
6
3
5
8
7
7
0
8
5
8
0
9
6
8
8
8
4
7
8
9
6
8
593.
536.
509.
540.
624.
524.
511.
541.
608.
487.
525.
522.
699.
603.
583.
617.
667.
579.
566.
593.
633.
552.
531.
563.
666.
578.
502.
576.
634.
562.
548.
573.
>^
2
2
4
6
0
3
2
3.
8
0
9
7
2
2
9
7
0
1
1
7
5
0
2
1
9
8
3
1
0
1
7
2
^^^
1.
1.
1.
1.
1.
1.
1.
1.
2.
1.
2.
2.
1.
1.
1.
1.
1.
1.
1.
1.
1.
2.
1.
2.
1.
1.
1.
1.
1.
1.
1.
1.
>MB^
86
99
82
92
63
76
68
71
44
97
35
17
80
92
77
86
82
91
78
86
93
09
91
01
61
77
43
64
78
80
77
79
FUEL
ECON
MPG
16.99
18.78
19.82
18.65
16.18
19.26
19.79
18.66
16.58
20.72
19.24
19.32
14.45
16.74
17.32
16.36
15.13
17.4$
17.86
17.01
15.93
18.28
19.02
17.92
15.13
17.41
20.10
17.51
15.94
17.95
18.42
17.61
-------
17
Appendix B
Listing of Highway Fuel Economy & Emission Results on Individual
St. Louis Diesels
Vehicles
Veh.
No.
1376
1377
+1378
1379
+1380
+1381
1382
+1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
Model
Year
1978
1978
1977
1979
1978
1977
1979
1978
1979
1979
1978
1979
1979
1979
1978
1979
1979
1979
1978
1978
Make
CMC
Chev
IH
CMC
Chev
IH
Chev
IH
Chev
CMC
Merb
CMC
Chev
CMC
CMC
Chev
Chev
CMC
Chev
CMC
Model
C150
CIO
Scout
C150
CIO
Trav
CIO
Scout
CIO
C150
207D
C150
CIO
C150
C150
CIO
CIO
C150
CIO
C150
Test
I.W.
Lbs.
4500
4500
4500
4500
4500
4500
4500
4000
4500
4500
5000
4500
4500
4500
4500
4500
4500
4500
4500
4500
Act.
Dyno
HP
19.5
19.5
17.0
19.5
19.5
17.0
19.5
17.0
19.5
19.5
19.5
19.5
19.5
19.5
19.5
19.5
19.5
19.5
19.5
19.5
-Emission Results
HC CO C00
0.44
0.48
1.03
0.38
.0.64
2.65
0.34
0.21
0.39
0.29
0.16
0.30
0.28
0.37
0.27
0.56
0.61
0.40
1.34
0.63
1.2
1.3
2.3
1.0
1.2
3.1
1.2
1.3
1.3
0.9
0.16
1.0
1.1
1.2
1.1
1.2
1.3
1.0
2.3
1.3
i.
451.
435.
427.
455.
435.
397.
480.
476.
448.
430.
473.
464.
489.
461.
454.
456.
462.
452.
498.
475.
(gm/mi)-
NOx
8
2
3
8
8
0
0
2
2
1
3
5
3
1
2
5
2
2
5
6
1.43
1.51
1.67
1.61
1.36
2.01
1.49
2.35
1.74
1.57
2.34
1.60
1.62
1.69
1.34
1.61
1.31
1.54
1.19
1.38
Fuel
Econ.
MPG
22.36
23.19
23.44
22.19
23.14
24.80
21.07
21.24
22.54
23.53
21.41
21.79
20.68
21.92
22.28
22.12
21.83
22.36
20.10
21.22
-------
Appendix C
MODE
NO.
Idle"
5 MPH
10 MPH
15 HPH
30 MPH
H5 MP»
60 MPH
MODE
NO.
Idle
5 MPH
10 MPH
15 MPH
30 MPH
U5 MPK
6o MPH;
MODE
NO.
Idle
5 MPH
10 MPH
15 KPH
30 MPH
1)5 MPH
60 MPH
VEH.
1376
HC
0.17
1.70
0.93
1.22
0.69
0.71
0.04
VEH.
+7378
HC
0.00
0.69
1.33
4.63
2.61 ,
0.36
0.23
VEH.
+7380
HC
0.19
2.17
1.19
0.69
0.48
0.58
0.61
YEAR
7978
CO
0.3
4.9
2.6
1.5
1.7
1-3
1.2
YEAR
7977
CO
0.1
2.5
3.0
5-3
2.6
2.3
2.6
YEAR
7978
CO
i:i
2.8
1.4
0.9
1.0
1.2
MAKE
CMC"
C02
65.0
1162.2
570.4
394.6
407.2
403.0
490.6
MAKE
iiT"
C02
29.8
379.9
375.7
414.1
325.3
337.9
472.1
MAKE
CHEV
-C02
73.6
833.7
520.0
367.8
324.7
384.1
489.0
MODL
cTio
NOX
0.21
3.40
2.24
1.35
1.78
1.58
1.86
MODL
SCOU
NOX
0.22
2.81
2.10
2.27
1.89
1.73
2.28
MODL
c7
-------
19
Appendix C
VEH. YEAR HAKE MODL CID
7384 7979 CHEV c75~ 350
MODE
NO.
Idle
5
10
15
30
15
60
MPH
XPH
MPH
MPH
MPH
KPH
HC
0.
1.
0.
0.
0.
0.
0.
11
01
69
43
30
?6
49
CO
0.
6.
4.
1.
1.
1.
1.
6
8
1
9
5
5
2
C02
87.
1000.
570.
385.
334.
386.
501.
7
9
0
8
I
8
NOX
0
4
1
1
2
.35
.04
.40
.09
.79
.87
.41
MPG
114.
10.
17.
26.
30.
26.
20.
4
0
6
1
1
1
1
VEH. YEAR HAKE MODL CID
7385 7979 CMC" c7io 350
C02 NOX MPG
VEH. YEAR MAKE MODL CID
7386 7978 HERB 207D 746
MODE
NO.
Idle
5 MPi!
1 /» u nti
10
1C
15
30
"5
60
r.i .1
»»nti
*ir.I .
MPH
Hril.
K?H
0
0
0
0
0
0
0
HC
.02
.76
.37
.34
.19
.11
.13
CO
0.
4.
1.
2.
1.
1.
1.
2
2
8
8
5
2
1
C02
29.
688.
413.
467.
383
553*.
3
2
4
lj
7
NOX
0
2
1
1
1
2
3
.17
.85
.74
.90
.96
32
.89
MPG
342.
14.
24.
21.
25-
26.
18.
1
6
4
9
4
3
VEH. YEAR MAKE MODL CID
7387 7979 CMC" C150 350
HC
CO
C02 NOX MPG
0.16
1.60
0.80
0.47
0.30
0.21
0.34
0.4
5-3
1.6
1.1
0.8
0.8
0.9
96.2
1119.9
581.7
399.4
343.6
402.2
504.4
0.40
4.68
2.50
1.70
1.69
1.86
2.24
104.5
9.0
17.3
25.3
29.4
25.2
20.1
VEH. YEAR MAKE MODL CID
7388 7979 CHEV" c7o~ 350
MODE
NO.
Idle
5 MPH
10
15
30
U5
60
MPH
MPH
MPH
MPH
MPH
HC
0.
1.
0.
0.
0.
0.
0.
01
67
39
28
31
39
CO
0.
4.
2.
1.
1.
1.
1.
2
3
9
9
0
1
2
C02
90.
1054.
557.
402.
362.
428.
520.
NOX
7
0
5
5
1
8
1
0.
4.
2.
1.
1.
1.
2.
40
57
71
87
70
90
18
MPG
111
9
18
25
27
23
19
:l
.0
.0
. J
6
.4
VEH. YEAR MAKE MODL CID
7389 7979 CMC" c750 350
HC
CO
C02 NOX MPG
0.
0.
0.
0.
0.
0.
0.
10
11
65
26
31
42
0
1
1
1
1
4
2
2
8
1
2
1
83
961
451
396
347
402
512
:I
.2
.7
.5
.7.
.0
0
4
2
2
2
1
2
ft
04
03
00
96
32
120.
10.
22.
25.
29.
25.
19.
4
2
3
1
1
8
VEH. YEAR MAKE MODL CID
7390 7978 GMC~ (fl50 350
MODE
NO.
Idle
5 MFH
10 MPH
15 I-iPH
30 MPH
15 MPH
60 MPH
HC
0.01
2.00
0.75
0.74
0.57
0.40
0.42
CO
0.4
4.6
1.8
2.6
1.7
1.1
1.2
C02
87.9
991.7
519.2
507.8
381.2
390.1
496.7
NOX
0.28
3.05
2.06
2.29
1.63
1.56
1.83
MPG
114.7
10.1
19.4
19.8
26.4
25.9
20.4
VEH. YEAR MAKE MODL CID
739~7 7979 CHEV clo" 350
HC
0.15
1.59
0.79
0.51
0.39
0.44
0.49
CO
0.4
5.3
2.3
1.1
1.0
C02 NOX MPG
1.0
1.1
89
1040
550
389
338.0
10.9
17.6
0.33
3-63
2.50
1.61
1.73
1.77
2.09
112.8
3-7
18.3
25.9
29.9
25.8
20.7
EMISSION RESULTS IN GRAMS PER MILE (PER MINUTE FOR IDLE)
FUEL ECONOMY IN MILES PER GALLON (MINUTES PER GALLON FOR IDLE)
-------
20
Appendix C
MODE
NO.
Idle
5 MPH
10 MPH
15 MPH
30 MPH
US MPH
60 HPH
VEH.
T392
HC
0.13
1.96
0.91
0.51
0.47
0.52
0.63
YEAR MAKE
7979 CHEV
CO C02
0.3 89.1
5.4 1056.8
1.8 500.3
1.8 374. 0
1.6 330.1
1.2 396.3
1.2 524.6
MODL
c76.2
'P
1.61
1.70
1.24
21.1
VEH. YEAR MAKE MODL CID
7394 7978 CHEV c7(T 350
MODE
NO.
Idle
5 MPH
10 MPH
15 HPH
30 MPH
"45 MPH
60 MPH
0
2
1
0
0
1
0
HC
.26
.75
.59
93
.86
.17
.38
CO
0.
6.
4.
2.
1.
2.
2.
6
8
g
9
0
2
C02
71.
750.
595.
399.
341.
406.
578.
2
3
0
6
7
8
NOX
0
1
1
1
1
1
1
.15
.45
.72
.09
.13
.28
.68
MPG
139.
15.
25.
29.
24.
17.
5
2
8
0
I
4
VEH. YEAR MAKE MODL CID
7395 7978 GM
-------
21
APPENDIX P
LISTING OF FEDERAL=SHQRT CYCLE EMISSION RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH.
NO.
1376
1377
+1378
1379
+1380
+1381
1382
+1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
MODL
YEAR
1978
1978
1977
1979
1978
1977
1979
1978
1979
1979
1978
1979
1979
1979
1978
1979
1979
1979
1978
1978
MAKE
CMC
CHEV
IH
CMC
CHEV
IH
CHEV
IH
CHEV
CMC
MERB
CMC
CHEV
CMC
CMC
CHEV
CHEV
CMC
CHEV
CMC
MODL
C150
C10
SCOU
C150
C10
TRAV
C10
SCOU
C10
C150
207D
C150
C10
C150
C150
C10
C10
C150
C10 '
C150
CID
350
350
198
350
350
198
350
198
350
350
146
350
350
350
350
350
350
350
350
350
SEQ.
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
- EMISSION RESULTS (gm/mi)-
HC CO C02 NOxc
0.74
0.59
1.43
0.59
0.86
3.30
0.51
0.20
0.46
0.39
0.27
0.47
0.32
0.34
0.37
0.59
0.72
0.52
1.36
0.51
1.9
1.6
2.5
1.6
1.6
2.8
1.5
1.0
1.7
1.2
1.4
1.4
1.5
1.5
1.5
1.6
1.7
1.5
2.6
1.4
456.
418.
377.
434.
404.
371.
447.
374.
421.
409.
409.
456.
479.
441.
439.
434.
442.
435.
445.
375.
7
9
6
6
6
2
4
5
5
8
4
2
1
1
9
6
2
2
6
7
1.44
1.39
1.41
1.54
1.29
1.62
1.51
1.74
1.58
1.45
1.71
1.51
1.55
1.67
1.32
1.48
1.23
1.44
1.05
1.17
FUEL
ECOM
MPG
22.02
24.04
26.36
23.18
24.83
26.35
22.54
27.02
23.91
24.64
24.67
22.13
21.09
22.89
22.95
23.18
22.76
23. T7
22.42
26.81
-------
22
APPENDIX E
LISTING OF IDLE EMISSION RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH.
NO.
1376
1377
+ 1378
1379
+1380
+ 1381
1382
+ 1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
MODL ^
YEARMAKE -MODL
1978
1978
1977
1979
1978
1977
1979
1978
1979
1979
1978
1979
1979
1979
1978
1979
1979
1979
1978
1978
CMC
CHEV
IH
CMC
CHEV
IH
CHEV
IH
CHEV
CMC
MERE
CMC
CHEV
CMC
CMC
CHEV
CHEV
CMC
CHEV
CMC
C150
C10
SCOU
C150
CIO
TRAV
C10
SCOU
C10
C150
207D
C150
C10
C150
C150
C10
C10
C150
C10
C150
CID
350
350
198
350
350
198
350
198
350
350
146
350
350
350
350
350
350
350
350
350
SEQ.
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
^a
HC
ppmh
3
0
21
0
0
30
1
0
0
0
1
4
2
0
1
0
0
0
3
5
IDLE -
CO
%
0.08
0.08
0.05
0.07
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
09
10
08
06
07
06
05
09
05
06
07
07
06
07
10
04
V«*^B«*^
NO
ppra
39
37
93
39
32
44
67
128
69
61
98
75
62
56
40
53
29
48
27
55
-------
23
APPENDIX F
LISTING OF FEDERAL THREE MODE EMISSION RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH. MODL
NO. YEAR MAKE MODL
1376 1978 CMC C150
1377 1978 CHEV C10
+1378 1977 IH SCOU
1379 1979 CMC C150
+1380 1978 CHEV C10
+1381 1977 IH TRAV
1382 1979 CHEV C10
+1383 1978 IH SCOU
1384 1979 CHEV C10
1385 1979 CMC C150
1386 1978 MERB 207D
CID
350
350
198
350
350
198
350
198
350
350
146
SEQ.
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
MODE
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (N)
RLHP
25.0
10.0
25.0
10.0
22.9
10.0
25.0
10.0
25.0
10.0
22.9
10.0
25.0
10.0
22.0
9.0
25.0
10.0
25.0
10.0
25.0
11.0
HC
ppmh
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
43
22
18
3
6
6
6
0
0
0
0
2
3
5
4
0
0
0
0
0
0
0
CO
*
0.06
0.05
0.06
0.05
0.07
0.07
0.07
0.06
0.13
0.05
0.06
0.04
0.04
0.04
0.04
0.08
0.08
0.08
0.09
0.11
0.05
0.06
0.08
0.08
0.08
0.08
0.08
0.06
0.05
0.06
0.05
0.05
0.05
0.04
0.06
0.05
0.05
0.05
0.07
0.05
0.05
NO
ppra
148
141
88
46
160
13,9
82
45
309
291
128
169
148
98
43
- 140
135
77
40
329
291
61
154
155
102
72
388
319
249
151
174
164
99
71
193
167
115
61
435
299
110
-------
24
APPENDIX F
LISTING OF FEDERAL THREE MODE EMISSION RESULTS ON INDIVIDUAL VEHICLES
ST. LOUIS DIESELS
VEH. MODL
NO. YEAR MAKE MODL CID
1387 1979 CMC C150 350
1388 1979 CHEV C10 350
1389 1979 CMC C150 350
1390 1978 CMC C150 350
1391 1979 CHEV C10 350
1392 1979 CHEV C10 350
1393 1979 CMC C150 350
1394 1978 CHEV C10
350
1395 1978 CMC C150 350
SEQ.
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
BASE
MODE
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
52 MPH
25 MPH
IDLE (D)
IDLE (N)
RLHP
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
25.0
10.0
HC
ppmh
0
7
8
10
4
7
8
8
0
2
5
4
0
0
0
0
0
1
2
3
0
0
0
0
0
0
0
0
0
0
8
8
0
0
0
0
CO
%
0.09
0.09
0.09
0.09
0.06
0.06
0.06
0.05
0.07
0.06
0.06
0.06
0.05
0.05
0.05
0.05
0.06
0.06
0.06
0.05
0.05
0.04
0.05
0.04
0.06
0.05
0.06
0.06
0.10
0.08
0.09
0.10
0.06
0.05
0.06
0.05
NO
pptn
188
158
135
88
195
154
117
64
178
167
117
65
152
147
83
44
175
151
106
53
89
92
55
32
180
166
104
54
114
113
59
36
13^
147
84
56
-------
25
APPENDIX G
LISTING OF VEHICLE DRIVEABILITY PROBLEMS AND MAINTENANCE INFORMATION
ST. LOUIS DIESELS
MODL MAINTENANCE
YEAR MAKE MODL CAT FE CF
DRIVEABILITY PROBLEMS
REPAIRS TYPE . WHEN EFFECT
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1978
1978
1977
1979
1978
1977
1979
1978
1979
1979
1978
1979
1979
1979
1978
1979
1979
1979
1978
1978
CMC
CHEV
IH
CMC
CHEV
IH
CHEV
IH
CHEV
CMC
MERB
CMC
CHEV
CMC
CMC
CHEV
CHEV
CMC
CHEV
CMC
C150
C10
SCOU
C150
C10
TRAV
C10
SCOU
C10
C150
207D
C150
C10
C150
C150
C10
C10
C150
C10
C150
1 N
1 Y
1 Y
1 N'
1 N
1 Y
1 N
1 Y
1 N
1 N
1 Y
1 N
1 Y
1 N
1 N
1 N
1 Y
1 Y
1 N
1 N
Y
Y
Y
Y
Y
N
Y
Y
N
Y
N
Y
N
Y
Y
Y
N
N
N
N
NO
YES
NO
NO
NO
YES
NO
NO
NO
YES
NO
NO
YES
NO
YES
NO
YES
YES
NO
YES
6
6
2
6
2
2
2
3
2
2
2
2
MAINTENANCE INFORMATION
CAT - Has the catalytic converter ever been replaced on this vehicle
(1: no catalyst; 2: yes; 3' no; U: don't know)
Note: If catalytic converter has been removed, question
is answered 'no1.
FE - Do you accurately keep records of the fuel economy on this
vehicle (Y: yes; N: no)
CF - Are you concerned with the fuel economy of this vehicle
(Y: yes; N: no)
DRIVEABILITY PROBLEMS
REPAIRS - Have you had any repairs to your vehicle for the correction
of driveability problems
TYPE - What repairs were performed on your vehicle to correct
driveability problems (1: none; 2: Injector ; 3: engine;
l»: emission control; 5: ignition system; 6: other; 7: don't know)
WHEN - How long ago were these repairs accomplished? (1: no repairs;
2: 0-3 months; 3: 3-6 months; 4: over 6 months; 5: don't know)
EFFECT - Were these repairs effective in correcting the driveability
problems? (1: no repair; 2: yes; 3: no)
-------
Appendix G
Driving Pattern
Driving Purpose
Owner Estimate
£
t>
o
/
1376
1 1"7 "7
i J/ /
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1392
1393
1394
1395
Legend;
/
78
TO
/O
77
79
78
77
79
78
79
79
78
79
79
79
78
7O
/ 7
79
79
78
78
L:
S:
M:
A:
^
CMC
Chev
IH
CMC
Chev
IH
Chev
IH
Chev
CMC "
Merb
CMC
Chev
CMC
CMC
Chev
CMC
Chev
CMC
?
$
C150
Scout
C150
CIO
Trav
CIO
Scout
CIO
C150
207D
C150
CIO
C150
C150
f* i r\
\jL\J
CIO
C150
CIO
C150
Avg.
Little (less than
Some (21%
Most (51%
All ( more
to 50%)
to 75%)
1
§
49842
40819
8568
8466
91760
7863
22358
11823
16627
13402
11475
4466
5951
27480
1 n^7 ft
1U J / O
7920
10867
48104
37727
23469
20%)
£
£^
TCZ148S521094
G0063GGD5302
TCZ149S522640
CCZ148S215995
G0103GGD30567
CCZ149S118976
H0103HGD46422
CCZ1495188762
TCZ149J508787
6015011801943
TCZ149J518040
CCZ149J185893
TCZ149S528508
TCZ148S534191
CCZ149S148145
TCZ149S517001
CCZ148S183967
TCZ148S528924
/ £V £ ttt /
1 / / / '
/I 8 S * 3
& £ 1 # J7 * J
/ 8 JE?
L L
Ac
a
A L
L S
L A
L L
L L
A L
I. A
L A
S L
A L
L A
A L
M S
Me
O
L L
M S
A L
A L
0
S
L
L
S
L
L
L
L
S
L
L
L
S
S
S
L
L
L
Of
S
L
S
L
A
S
L
L
L
M
L
L
L
L
S
S
L
L
°y
L
S
L
L
L
S
L
L
L
S
L
L
L
L
L
L
L
L
' *
S
L
S
L
L
L
L
S
A
L
A
S
A
L
S
A
A
A
CO
L
A
L
S
L
S
L
S
L
L
L
L
S
A
L
L
L
L
c / * S » / &
+} f ft £ Q / £
S / * ? . / ^ ?
a /ID ** i! / ^ **
V / * O__ 1+1 ' *.
ft j iWttl
O T? / vy fl O / v< C" S
L
L
L
A
A
L
S
L
L
L
L
S
L
L
S
A
A
A
«u
O
s
s
s
L
L
S
S
L
L
A
L
L
L
S
L
L
L
L
/ ^
12
O/.
ZH
35
10
9
20
30
15
13
5
99
17
7
29
12
2
20
7
18
18
i=-*> / 0
4
6
8 19
4
4 22
2
6 18
4
6
16 -
2
6
4
4
6
6
20
16
* a
18
| c
Ij
25
24
_ _
23 -
20
25 -
24
18
26
23 -
19 -
20 -
19
18
21
20 -
- -
than 75%)
-------
Appendix G
a" &
/ / £ £ J?/ f /
/ / . / / / //»/ /
/ & S j & //&* / /
/ / / # / * /> /? // /
o- & <£ * ^ $ & ^°
79 CMC
78 Chev
77 IH
79 Chev
78 IH
79 Chev
79 CMC
78 Merb
79 CMC
79 Chev
79 CMC
78 CMC
79 Chev
79 Chev
79 CMC
78 Chev
78 CMC
Hard Starting
* ^
C150
CIO
Scout
C150
CIO
Trav
CIO
Scout
CIO
C150
207D
C150
CIO
C150
C150
CIO
CIO
C150
CIO
C150
<
No
No
Yes
No
Yes
No
No
No
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
No
R.
Poor Acceleration
Injectors
: Transmission
Fuel Pump
Cooling Line
0.
** $
4? &
^ CJ*
NA Mostly
NA Yes
HS.RI.PA.P Yes
NA Yes
P. Yes
NA Yes
NA Yes
NA Yes
RI, PA, S. Yes
S Mostly
NA Yes
NA No
NA Yes
NA Yes
NA Mostly
NA Yes
NA No
NA Mostly
NA Mostly
NA Yes
I. : Rough Idle
D.: Driveability
L. : Oil Leaks
P.: Ping
S.: Stumbling
**y
12-24
12
0-6
None
None
None
None
None
None
Unknown
12
None
None
None
12-24
12
None
0-6
12
12
InJ. P:
TR:
HPL:
P:
/
Too New
6-12
6-12
Too new
Too new
Too new
Too new
Too new
Too new
Unknown
0-6
Too new
Too New
Too New
0-6
0-6
Too New
0-6
6-12
0-6
Replaced
/ //
Never Unknown
Self 0-6
Self 0-6
Never 0-6
Never Unknown
Never 0-6
Never 0-6
Never 0-6
Never 0-6
Unknown 0-6
Clinic 0-6
Never 0-6
Never 0-6
Never 0-6
dealer 0-6
Self 0-6
Never 0-6
Garage 0-6
Self 0-6
Self 0-6
Injector Pump
/I
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
& C/ J
f .to -^
3+
3+
3+
None
None
None
None
None
None
3+
1
None
3+
1
3+
3+
3+
2
None
None
?& *
' i? -y
& *&
Inj. P, Inj., O.L.
TR, Inj. P.,
O.L.
NA
NA
NA
NA
NA
NA
Inj.
O.L.
NA
InJ.
HPL
O.L., Inj.*
O.L.
Inj. P., P., O.L.
TR.
NA
**
£*
Mobil
Bonaf ide
Texaco
Unknown
Kerr-McGee
Texaco
Amoco
Various
Various
Unknown
Freedom
Various
Zephyr
Texaco
Unknown
Phillips
Phillips
Various
Various
Various
/
No
Yes
No
No
-No
No
No
No
No
No
No
No ^j
No
No
No
No
No
No
No
No
Transmission
High Pressure Line
Piston
* Engine Rebuilt at 21,000 miles
** Had new engine installed
------- |