United States              Air and Radiation          EPA420-F-98-033
                     Environmental Protection                            October1998
                     Agency

                     Office of Mobile Sources
v>EPA        Technical
                    Highlights
                     Aftermarket Retrofit Device
                     Evaluation Program
                     The U.S. Environmental Protection Agency (EPA) conducts a program
                     to evaluate the effects of fully developed aftermarket devices on vehicle
                     emissions and fuel economy. Participation in this program by
                     manufacturers of devices is voluntary. EPA evaluations of engines,
                     retrofit devices, emission control devices, and related products are
                     conducted for the purpose of keeping policy makers, technical
                     personnel in government and industry, and the general public abreast of
                     developments in the field of automotive fuel economy and pollutant
                     emission control.
                     Background

                     Aftermarket fuel additives and devices advertised to increase vehicle fuel
                     economy and/or reduce vehicle emissions may claim to have EPA
                     approval. EPA, however, does not approve, certify, endorse or register
                     these products.

                     EPA evaluates aftermarket fuel additives and devices on a voluntary
                     basis when an application is accepted from the company which manufac-
                     tures the product. The Agency may also evaluate a product at the direc-
                     tion of the EPA Administrator or the Federal Trade Commission. Results
                     of any evaluation are a matter of public record and are published in the
                     Federal Register. All preliminary independent laboratory and EPA
                     laboratory costs for a voluntary evaluation are paid for by the company
                     offering the product. The evaluation program is restricted to fuel addi-
                     tives and devices and does not apply to oil additives and lubricants.

                     A minimum evaluation program employs the same type of scientific tests
                     used by EPA to  certify vehicles for sale in the United States. These are
                     the Federal Test Procedure (FTP) and the Highway Fuel Economy Test
                                                                I Printed on Recycled Paper

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(HFET). Both involve controlled driving
patterns on a laboratory test machine (a
dynamometer) which similuates an actual
road load condition and during which
exhaust gases are captured and analyzed.
Fuel economy for city and highway driving
(FTP and HFET, respectively) is calculated
using a carbon balance formula and the
actual emission samples results which are
the same methods used for calculating the
city and highway fuel economy informa-
tion displayed on windows of new vehicles.

EPA tests are conducted under very con-
trolled conditions in a laboratory to elimi-
nate uncontrollable variables  such as
individual driving habits, wind, weather,
traffic and road conditions experienced
with actual driving on roads. The  make,
model and year of vehicles used in an
evaluation are selected to represent typical
vehicles for which the device or additive is
intended to be used.
EPA has evaluated over one hundred
products in this program. A listing of the
products which have been tested (as of this
publication's date) is attached to this
document. The report number associated
with each of the evaluated products may be
used to purchase a copy of the report.
Orders for the reports may be placed with:

     NTIS
     5285  Port Royal Road
     Springfield, VA 22161
     (800)553-6847

It is suggested that individuals contemplat-
ing the purchase  of these products request
test data rather than testimonial or anec-
dotal evidence from the supplier. One
should also weigh the cost of the product
against the actual fuel savings over the
intended use period.
 The test vehicle's engine is first adjusted to
the vehicle manufacturer's  specifications
and tested in this configuration to provide a
base line. In the second stage the product is
installed on the vehicle and the test is
repeated. In the third stage  the product is
removed and the vehicle is  reset to the
original configuration of the first stage to
determine whether use of the device af-
fected original performance. Duplicate
tests are conducted for each of the vehicle
configurations.

EPA engineers report their findings based
on the test data. The report  is then pub-
lished in $\Q Federal Register. Individual
copies of a test evaluation may be pur-
chased from the National Technical Infor-
mation Service (NTIS).
For
Additional documents on aftermarket
product evaluations are available electroni-
cally from the EPA Internet server at:

    http ://www. epa.gov/oms/
    consumer.htm

For further information, please contact
Russ Banush at:

    U.S. EPA
    Office of Mobile Sources
    2000 Traverwood Dr.
    Ann Arbor, MI 48105
    (734)214-4925

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                                               DEVICE
               NAME

A CDS Automotive Cylinder Deaclivation System (2)
ADAKS Vacuum Breaker Air Bleed
Air-Jet Air Bleed
Analubc Synthetic Lubricant
Aquablast Wy man Valve Air Bleed
Atomized Vapor Injector
Auto-Miser
Autosaver
AUTOTHERM (1) (circulates coolant for heater)
Ball-Matic Air Bleed
Basko Enginecoat
Baur Condenser
Berg Air Bleed
BIAP Electronic Ignition Unit
BRAKE-EZ
Brisko PCV
Bycosin
Cyclone-Z
Dresser Economizer
Dresser Economizer
Dynamix
Econo Needle Air Bleed
Econo-Jet Air Bleed Idle Screws
Econo-Mist Vacuum Vapor Injection System
El-5 Fuel Additive
Electro-Dyne Superchoke
Energy Gas Saver
Environmental Fuel Saver
Filtron Urethane Foam Filter
Frantz Vapor Injection System
Fuel Conservation Device
Fuel Economizer
Fuel Max (2)
Fuel Maximiser
Fuelon Power
FuelXpander
Gas Meiser I
Gas Saving Device
Gas Saving/Emission Control Improvement
REPORT                 SOURCE

 PBS 1228 256                NTIS
 PB 220 005                   NTIS
 PB 220 002                   NTIS
 PB 80 181 985                NTIS
 PB 81 113001                 NTIS
 PB 83 214 684                NTIS
 EPA-AA-TEB-511-80-1         EPA
 PB 81 220 840                NTIS
 PB 85 233 310                NTIS
 PB 80 159 429                NTIS
 PB 82 123 837                NTIS
 EPA-AA-TEB-511-81-18       EPA
 PB 218 574                   NTIS
 PB 218 647                   NTIS
 EPA-M-TEB-511-82-10         EPA
 PB 218 398                   NTIS
 EPA-AA-TEB-71-24           EPA
 PB 83 227 587                NTIS
 EPA-AA-TEB-511-82-6         EPA
 PB 84 155 936                NTIS
 PB 83 159 384                NTIS
 PB 218 638                   NTIS
 PB 81 012 931                NTIS
 PB 80 190 952                NTIS
 EPA-AA-TEB-76-28           EPA
 EPA-AA-TEB-76-11           EPA
 EPA-AA-TEB-511 -82-7         EPA
 EPA-AA-TEB-511 -80-3         EPA
 EPA-AA-TEB-74-23           EPA
 EPA-AA-TEB-72-5            EPA
 PB 82 124 215                NTIS
 PB 83 181 149                NTIS
 PB 82 229 866                NTIS
 PB 84 129 881                NTIS
 PB 93 236 693                NTIS
 PB 80 140 809                NTIS
 PB 81 219 032                NTIS
 PB 83 181 123                NTIS
 PB 83 181 123                NTIS
     TYPE

Internal Engine Modifier
Air Bleed Device
Air Bleed Device
Oil/Additive
Air Bleed Device
Vapor Bleed Device
Air Bleed Device
Ignition Device
Driving Habit Modifiers
Air Bleed Device
Mixture Enhancer
Ignition Device
Air Bleed Device
Ignition Device
Miscellaneous
Air Bleed Device
Fuel/Additive
Air Bleed Device
Internal Engine Modifier
Mixture Enhancer
Miscellaneous
Air Bleed Device
Air Bleed Device
Vapor Bleed Device
Fuel/Additive
Mixture Enhancer
Mixture Enhancer
Mixture Enhancer
Mixture Enhancer
Vapor Bleed Device
Driving Habit Modifiers
Ignition Device
Air Bleed Device
Miscellaneous
Fuel/Additive
Fuel Line Device
Fuel Line Device
Air Bleed Device
Mixture Enhancer
SUB TYPE
 Other
 Other
 Other
 Under Carb
 Under Carb
 Other
Heat/Cool
Heat/Cool

Under Carb

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                NAME
REPORT
SOURCE
TYPE
SUBTYPE
Gasteii
Glynn-50
Goodman Engine System, Model 1800
Grancor Air Computer
Greer Fuel Preheater
Gyroscopic Wheel Cover
Hot Tip
Hydro-Catalyst Pie-Combustion Catalyst System
Hydro-Vac
IDALERT (1)
Jacona Fuel System
Johnson Fuel Additive
Kamei Spoilers(l)
Kat's Engine Heater
Larrikin Fuel Metering Device
Landrum Mini-Carb
Landrum Retrofit Air Bleed
Lee Exhaust and Fuel  Gasification EGR
Magna Flash Ignition Control System
Malpassi Filter King (fuel pressure)
Mark II Vapor Injection System
Mesco Moisture Extraction System
Mini Turbocharger Air Bleed
Moleculetor (metallic)
Monocar HC Control Air Bleed
Morse Constant Speed Accessory Drive (1)
MSU Cylinder Deactivation (2)
NRG #1 Fuel Additive
Optimizer
P.A.S.S.KTT(l)
P.S.C.U. 01 Device
Pascr Magnuin/Paser 500/Pascr 500 HEI
Pass Master Vehicle Air Conditioner (1)
Peterman Air Bleed
PETRO-MIZER
PETROMIZER SYSTEM
Platinum Gasaver
POLARION X
POLARION X (second evaluation)
PB 81 215 899                 NT1S
EPA-AA-TEB-511-81-28        EPA
EPA-AA-TEB-511-80-4         EPA
PB 82 215 899                 NTTS
PB 82168 949                 NTIS
PB 84 143 577                 NTIS
PB 83 181 156                 NTIS
PB 81 153 827                 NTTS
PB 84 144 088                 NTIS
PB 84 154 111                 NTIS
PB 83 159 301                 NTIS
EPA AA-TEB-74-26            EPA
PB 83 211243                 NTIS
PB 83 165 548                 NTIS
PB 80 177 272                 NTIS
PB 82 142 100                 NTIS
PB 82 142 100                 NTTS
EPA-M-TEB-74-14             EPA
PB 218 570                    NTIS
PB 83 214 700                 NTIS
EPA-AA-TEB-76-13            EPA
PB 84 148 014                 NTIS
EPA-AA-TEB-76-12            EPA
PB 81 247 942                 NTIS
PB 218 685                    NTIS
PB 80 159 601                 NTIS
EPA-AA-TEB-75-11            EPA
PB 80 226 558                 NTIS
PB 84 154 194                 NTIS
PB 83 194 381                 NTTS
PB 84 146 166                 NTIS
PB 82 183 567                 NTIS
PB 82 178 534                 NTIS
EPA-AA-TEB-74-16            EPA
PB 83 181 115                 NTIS
PBS 1227 043                 NTIS
PB 92 104 413                 NTIS
PB 83 175 752                 NTIS
PB 86 127 107                 NTIS
            Driving Habit Modifiers
            Mixture Enhancer              Under Carb
            Liquid Injection
            Air Bleed Device
            Fuel Line Device              Heat/Cool
            Miscellaneous
            Air Bleed Device
            Mixture Enhancer              Under Carb
            Vapor Bleed Device
            Driving Habit Modifiers
            Fuel Line Device              Heat/Cool
            Fuel/Additive
            Miscellaneous
            Miscellaneous
            Mixture Enhancer              Other
            Air Bleed Device
            Air Bleed Device
            Miscellaneous
            Ignition Device
            Fuel Line Device              Other
            Vapor Bleed Device
            Miscellaneous
            Air Bleed Device
            Fuel Line Device              Other
            Air Bleed Device
            Accessor}' Drive Modifiers
            Internal Engine Modifier
            Fuel/Additive
            Fuel Line Device              Heat/Cool
            Accessory Drive Modifiers
            Miscellaneous
            Ignition Device
            Accessory Drive Modifiers
            Air Bleed Device
            Fuel Line Device              Magnet
            Mixture Enhancer              Under Carb
            Vapor Bleed Device
            Fuel Line Device              Magnet
            Fuel Line Device              Magnet

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                NAME
REPORT
SOURCE
TYPE
SUB TYPE
Pollution Master Air Bleed
POWERFUEL
QEI400 Fuel Additive
Ram-Jet
Rolfite Upgrade Fuel Additive
Russell Fuelmeiser
Sav-A-Mile
SCATPAC Vacuum Vapor Induction System
Smith Power and Deceleration Governor
Special Formula Ignition Advance Springs
Spritzer
Sta-Power Fuel Additive
Stargas Fuel Additive
Super-Mag Fuel Extender
SYNeRGy 1
Technoi G Fuel Additive
Tcphguard
Treis Emulsifier
Turbo Vapor Injection System
Turbo-Carb
Turbo-Dyne G.R. Valve
Turbocarb
ULX-15/ULX-15D
V-70 Vapor Injector
VareblO Fuel Additive
VEECD (Now EVEC™) (3)
Waag-Injection System (2)
Wickliff Polarizer (fuel line and air intake)
XRG#1 Fuel Additive
PB 218 438
PB 84 148 543
EPA-M-TEB-76-8
PB 80 170 657
PB80 190960
PB83 181 131
PB82 197417
PB 81 153 819
PB 80 173 867
EPA-AA-TEB-75-13
EPA-AA-TEB-74-15
PB 218 567
P8 218 568
PB 82 194 937
PB82 122 169
PB 219 396
no number report
PB82 109711
EPA-AA-TEB-73-22
PB 83 159 939
PB 285 381
PB 84 156 462
PB 81 226680
PB 84 163 062
EPA-M-TEB-74-30
PB 97 193 999 INF
EPA-AA-TEB-511-80-6
PB82 117898
PB 80 180 672
   NTIS     Air Bleed Device
   NTIS     Vapor Bleed Device
   EPA      Fuel/Additive
   NTIS     Air Bleed Device
   NTIS     Fuel/Additive
   NTTS     Fuel Line Device
   NTIS     Mixture Enhancer
   NTIS     Vapor Bleed Device
   NTIS     Mixture Enhancer
   EPA      Ignition Device
   EPA      Mixture Enhancer
   NTIS     Fuel/Additive
   NTIS     Fuel/Additive
   NTIS     Fuel Line Device
   NTTS     Fuel/Additive
   NTIS     Fuel/Additive
   EPA      Oil/Additive
   NTIS     Miscellaneous
   EPA      Vapor Bleed Device
   NTIS     Mixture Enhancer
   NTIS     Air Bleed Device
   NTIS     Mixture Enhancer
   NTIS     Fuel/Additive
   NTIS     Vapor Bleed Device
   EPA      Fuel/Additive
   NTIS     Air Bleed Device
   EPA      Liquid Injection
   NTIS     Fuel Line Device
   NTIS     Fuel/Additive
                       Heat/Cool
                       Under Carb

                       Other

                       Under Carb


                       Magnet
                       Under Carb

                       Under Carb
                       Magnet
(1) Indicated a statistically significant improvement in fuel economy without an increase in exhaust emissions although cost effectiveness
must be determined by the consumer for his particular application.
(2) Indicated a statistically significant improvement in fuel economy but with an increase in exhaust emissions. According to Federal
Regulations, installation of this device could be considered tampering.
(3) Reduced carbon monoxide and hydrocarbons on older emission control technology vehicles.

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