Fuel Requirements - Gasoline Engine; 3.6L Engine; Reformulated Gasoline; Materials Added To Fuel - Jeep GLADIATOR 2022 Owner's Manual

After 25 miles (40 km), check the lug nut/bolt torque to
be sure that all the lug nuts/bolts are properly seated
against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts/bolts fully until the vehicle
has been lowered. Failure to follow this warning may
result in personal injury.
FUEL REQUIREMENTS — GASOLINE
ENGINE
While operating on gasoline with the required octane
number, hearing a light knocking sound from the
engine is not a cause for concern. However, if the
engine is heard making a heavy knocking sound, see
an authorized dealer immediately. Use of gasoline with
an octane number lower than recommended can cause
engine failure and may void the New Vehicle Limited
Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience
these symptoms, try another brand of gasoline before
considering service for the vehicle.

3.6L ENGINE

This engine is designed to meet all emission
regulations and provide excellent fuel
economy and performance when using high-
quality unleaded regular gasoline having an
octane rating of 87 as specified by the (R+M)/
2 method. The use of higher octane premium gasoline
will not provide any benefit over regular gasoline in
these engines.

REFORMULATED GASOLINE

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.

MATERIALS ADDED TO FUEL

Besides using unleaded gasoline with the proper
octane rating, gasolines that contain detergents, corro-
sion and stability additives are recommended. Using
gasolines that have these additives will help improve
fuel economy, reduce emissions, and maintain vehicle
performance.
Designated TOP TIER Detergent Gasoline
contains a higher level of detergents to fur-
ther aide in minimizing engine and fuel sys-
tem deposits. When available, the usage of
TOP TIER Detergent Gasoline is recommended. Visit
www.toptiergas.com for a list of TOP TIER Detergent
Gasoline Retailers.
Indiscriminate use of fuel system cleaning agents
should be avoided. Many of these materials intended
for gum and varnish removal may contain active sol-
vents or similar ingredients. These can harm fuel sys-
tem gasket and diaphragm materials.
TECHNICAL SPECIFICATIONS

GASOLINE/OXYGENATE BLENDS

Some fuel suppliers blend unleaded gasoline with oxy-
genates 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 driv-
ability problems, damage critical fuel system compo-
nents, 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).
Problems that result from using gasoline containing
more than 15% ethanol (E-15) or gasoline containing
methanol are not the responsibility of the manufacturer
and may void the New Vehicle Limited Warranty.
DO NOT USE E-85 IN NON-FLEX
FUEL VEHICLES
Non-Flex Fuel Vehicles (FFV) are compatible with gaso-
line containing up to 15% ethanol (E-15). Use of gaso-
line 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.
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