STARTING AND OPERATING
337
5.7L
Engines (If Equipped)
The 5.7L engine is designed to meet all
Poor quality gasoline can cause problem s such as hard
starting, stalling and hesitations. If you experience these
sym ptom s, try another brand of gasoline before consid -
ering service for the vehicle.
emissions regu lations and provid e satisfac-
tory fuel econom y and perform ance when
using high quality unlead ed gasoline hav-
ing an octane range of 87 to 89. The manu -
factu rer recom mend s the use of 89 octane
Over 40 auto manu factu rer’s world wide have issu ed and
end orsed consistent gasoline specifications (the World -
wide Fuel Charter, WWFC) to define fuel prop erties
necessary to deliver enhanced emissions, perform ance,
and durability for you r vehicle. The manu factu rer recom - 5
mend s the use of gasoline that meets the WWFC speci-
fications if they are available.
for optimum perform ance. The use of prem ium gasoline
is not recom mend ed. Und er norm al cond itions, the use of
prem ium gasoline will not provid e a benefit over high
quality regu lar and mid-grad e gasolines, and in som e
circumstances may resu lt in poorer perform ance.
Reformulated Gasoline
Many areas of the country requ ire the use of cleaner
burning gasoline referred to as “Reform ulated Gasoline.”
Light spark knock at low engine speed s is not harm ful to
you r engine. However, continu ed heavy spark knock at
high speed s can cause damage and immediate service is
requ ired .
Reform ulated gasoline contains oxygenates, and are spe-
cifically blend ed to red uce vehicle emissions and im-
prove air quality.
| Categories | Jeep Grand Cherokee Manuals, Jeep Manuals |
|---|---|
| Model Year | 2008 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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