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TECHNICAL SPECIFICATIONS
CNG AND LP FUEL SYSTEM
MODIFICATIONS
Modifications that allow the engine to run on Com-
pressed Natural Gas (CNG) or Liquid Propane (LP) may
result in damage to the engine, emissions, and fuel
system components. Problems that result from running
CNG or LP are not the responsibility of the manufac-
turer and may void the New Vehicle Limited Warranty.
METHYLCYCLOPENTADIENYL
MANGANESE TRICARBONYL (MMT)
IN GASOLINE
MMT is a manganese-containing metallic additive that
is blended into some gasolines to increase octane.
Gasoline blended with MMT provides no performance
advantage beyond gasoline of the same octane number
without MMT. Gasoline blended with MMT reduces
spark plug life and reduces emissions system perfor-
mance in some vehicles. The manufacturer recom-
mends that gasoline without MMT be used in your
vehicle. The MMT content of gasoline may not be indi-
cated on the gasoline pump; therefore, you should ask
your gasoline retailer whether the gasoline contains
MMT. MMT is prohibited in Federal law and California
reformulated gasoline.
FUEL SYSTEM CAUTIONS
CAUTION!
Follow these guidelines to maintain your vehicle's
performance:
•
The use of leaded gasoline is prohibited by Federal
law. Using leaded gasoline can impair engine per-
formance and damage the emissions control
system.
•
An out-of-tune engine, certain fuel or ignition mal-
functions can cause the catalytic converter to over-
heat. If you notice a pungent burning odor or some
light smoke, your engine may be out-of-tune or
malfunctioning and may require immediate ser-
vice. Contact an authorized dealer for service
assistance.
•
The use of fuel additives, which are now being sold
as octane enhancers, is not recommended. Most
of these products contain high concentrations of
methanol. Fuel system damage or vehicle perfor-
mance problems resulting from the use of such
fuels or additives is not the responsibility of The
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
NOTE:
Intentional tampering with the emissions control system
can result in civil penalties being assessed against you.
FUEL REQUIREMENTS – DIESEL ENGINE
CAUTION!
•
Use of Biodiesel Blends greater than 5% is not
approved. Use of blends greater than 20% can
result in engine damage. Such damage is not cov-
ered by the New Vehicle Limited Warranty.
•
If biodiesel greater than 5% (B6-B20) is used per
state mandate (example Minnesota in Summer
months) the fuel must be used within 30 days by
driving (to less than a quarter tank) and filled with
fresh diesel fuel. Failure to do so can result in
engine damage that is not covered by the New
Vehicle Limited Warranty.
Federal law requires that you must fuel this vehicle with
Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur
maximum) and prohibits the use of Low Sulfur Highway
Diesel fuel (500 ppm Sulfur maximum) to avoid dam-
age to the emissions control system.
Use good quality diesel fuel from a reputable supplier in
your vehicle. For most year-round service, Number
2 diesel fuel meeting ASTM (formerly known as the
American Society for Testing and Materials) specifica-
tion D-975 Grade S15 will provide good performance. If
the vehicle is exposed to extreme cold (below 20°F or
-7°C), or is required to operate at colder-than-normal
conditions for prolonged periods, use climatized Num-
ber 2 diesel fuel or dilute the Number 2 diesel fuel with
50% Number 1 diesel fuel. This will provide better pro-
tection from fuel gelling or wax-plugging of the fuel
filters.
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