Synthetic Engine Oils; Materials Added To Engine Oil; Disposing Of Used Engine Oil And Oil Filters; Engine Oil Filter - Jeep Grand Cherokee Operating Information Manual

Engine Oil Viscosity
CAUTION!
Your vehicle is equipped with an advanced
technology Diesel Engine and an emission
device designed to limit Diesel Particulate
Emissions from being released into the at-
mosphere. The durability of your engine and
life expectancy of this diesel particulate filter
emission device is highly dependent on the
use of the correct engine oil.
SAE 5W-30 Synthetic Low Ash Engine Oil is
recommended for all operating temperatures.
This engine oil improves low temperature start-
ing and vehicle fuel economy.
The engine oil filler cap also shows the recom-
mended engine oil viscosity for your engine. For
information on engine oil filler cap location, refer
to "Engine Compartment" in "Maintaining Your
Vehicle" for further information.

Synthetic Engine Oils

You may use synthetic engine oils provided the
recommended oil quality requirements are met,
380
and the recommended maintenance intervals
for oil and filter changes are followed.
Synthetic engine oils which do not have both
the engine oil certification mark and the correct
SAE viscosity grade number should not be
used.

Materials Added To Engine Oil

The manufacturer strongly
against the addition of any additives (other than
leak detection dyes) to the engine oil. Engine oil
is an engineered product and its performance
may be impaired by supplemental additives.
Disposing Of Used Engine Oil And
Oil Filters
Care should be taken in disposing of used
engine oil and oil filters from your vehicle. Used
oil and oil filters, indiscriminately discarded, can
present a problem to the environment. Contact
your authorized dealer, service station or gov-
ernmental agency for advice on how and where
used oil and oil filters can be safely discarded in
your area.

Engine Oil Filter

The engine oil filter should be replaced with a
new filter at every engine oil change.
Engine Oil Filter Selection
This manufacturer's engines have a full-flow
type disposable oil filter. Use a filter of this type
for replacement. The quality of replacement
filters varies considerably. Only high quality
recommends
filters should be used to assure most efficient
service. MOPAR engine oil filters are high qual-
ity oil filters and are recommended.

Engine Air Cleaner Filter

Refer to the "Maintenance Schedule" in the
"Maintenance Schedules" section for the proper
maintenance intervals.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in
the case of engine backfire. Do not remove
the air induction system (air cleaner, hoses,
etc.) unless such removal is necessary for
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