Reformulated Gasoline; Materials Added To Fuel; Gasoline/Oxygenate Blends; Do Not Use E-85 In Non-Flex Fuel Vehicles - Jeep Wrangler Owner's Manual

R G
EFORMULATED ASOLINE
Many areas of the country require the use of
cleaner-burning gasoline referred to as "reformulated
gasoline". Reformulated gasoline contains oxygenates
and are specifically blended to reduce vehicle emissions
and improve air quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will provide
improved performance and durability of engine and fuel
system components.
M A T F
ATERIALS DDED O UEL
Besides using unleaded gasoline with the proper octane
rating, gasolines that contain detergents, corrosion and
stability additives are recommended. Using gasolines that
have these additives will help improve fuel economy,
reduce emissions, and maintain vehicle performance.
Indiscriminate use of fuel system cleaning agents should
be avoided. Many of these materials intended for gum and
varnish removal may contain active solvents or similar
ingredients. These can harm fuel system gasket and
diaphragm materials.
G /O B
ASOLINE XYGENATE LENDS
Some fuel suppliers blend unleaded gasoline with
oxygenates such as ethanol.
CAUTION!
DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15). Use
of these blends may result in starting and drivability
problems, damage critical fuel system components,
cause emissions to exceed the applicable standard,
and/or cause the Malfunction Indicator Light to
illuminate. Please observe pump labels as they should
clearly communicate if a fuel contains greater than
15% ethanol (E-15).
D N U E-85 I N
O OT SE N ON
V
EHICLES
Non-Flex Fuel Vehicles (FFV) are compatible with gasoline
containing up to 15% ethanol (E-15). Use of gasoline with
higher ethanol content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85 fuel,
the engine will have some or all of these symptoms:
 Operate in a lean mode
 OBD II Malfunction Indicator Light on
 Poor engine performance
 Poor cold start and cold drivability
 Increased risk for fuel system component corrosion
CNG A
ND
M
ODIFICATIONS
Modifications that allow the engine to run on Compressed
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 manufacturer and may
-F F
LEX UEL
void or not be covered under the New Vehicle Limited
Warranty.
TECHNICAL SPECIFICATIONS 277
LP F S
UEL YSTEM