Fuel Requirements - Gasoline Engine; L Engine; Methanol - Jeep COMPASS Information Manual

172 TECHNICAL SPECIFICATIONS
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).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by an
authorized dealer or service station.
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.
CAUTION!
Do not use pneumatic wrench to tighten the
wheel bolts. This may overtighten the wheel
bolts and damage the chrome caps of the
wheel nut.
FUEL REQUIREMENTS — GASOLINE ENGINE
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
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.
1.4L E
NGINE
This engine is designed to meet all emission
regulations and provide satisfactory fuel
economy and performance when using
high-quality unleaded gasoline having a
minimum research octane rating (RON) of 95.
For optimum performance and fuel economy
the use of minimum research octane rating
(RON) of 98 or higher is recommended.
M
ETHANOL
(Methyl) is used in a variety of concentrations
when blended with unleaded gasoline. You may
find fuels containing 3% or more methanol
along with other alcohols called cosolvents.
Problems that result from using methanol/
gasoline are not the responsibility of the
manufacturer. While MTBE is an oxygenate
made from methanol, it does not have the
negative effects of methanol.
WARNING!
Do not use gasolines containing methanol.
Use of these blends may result in starting and
drivability problems and may damage critical
fuel system components.