User Manual - Page 361

For 2020 Wrangler.

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TECHNICAL SPECIFICATIONS 359
Spare tire torque is for the spare tire carrier
located on the swing gate.
Wheel Mounting Surface
Tighten the lug nuts/bolts in a star pattern until
each nut/bolt has been tightened twice. Ensure
that the socket is fully engaged on the lug nut/
bolt (do not insert it halfway).
Torque Patterns
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.
FUEL REQUIREMENTS
2.0L Engine
This engine is designed to meet all
emission requirements, and provide
satisfactory fuel economy and perfor-
mance, when using high-quality
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.
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 your 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.
3.6L Engine
This engine is designed to meet all
emissions regulations and provide
satisfactory fuel economy and perfor-
mance 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.
While operating on gasoline with an octane
number of 87, hearing a light knocking sound
from the engine is not a cause for concern.
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.
8
20_JL_OM_EN_USC_t.book Page 359
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