Fuel Requirements; L Engine; L And 3.2L Engines; Reformulated Gasoline - Jeep 2022 CHEROKEE Owner's Manual

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300
TECHNICAL SPECIFICATIONS
Torque Patterns
After 25 miles (40 km), check the lug nut/bolt
torque to be sure that all the lug nuts/bolts are
properly tightened.
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

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 a dealer immediately. Use of gasoline with a
lower than recommended octane number can
cause engine failure and may void or not be covered
by 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.
2.0L E
NGINE
This engine is designed to meet all
emission requirements, and provide
satisfactory fuel economy and
performance, when using unleaded
regular gasoline having an octane rating of 87, as
specified by the (R+M)/2 method. The use of 91 or
higher octane premium gasoline will allow these
engines to operate to optimal performance. This
increase in performance is most noticeable in hot
weather or other heavier load conditions, such as
while towing.
2.4L A
3.2L E
ND
NGINES
These engines are designed to meet all
emission regulations and provide
optimum fuel economy and performance
when using unleaded regular gasoline
having a posted octane number of 87 as specified
by the (R+M)/2 method. The use of higher octane
premium gasoline is not required, as it will not
provide any benefit over regular gasoline in these
engines.
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.
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).

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