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SERVICING AND MAINTENANCE
Engine oil not designated by the FCA or Cummins®
Material Standards and API CK-4 should not be used,
as engine and exhaust system durability may be com-
promised. The engine oil filler cap also shows the rec-
ommended engine oil viscosity for your engine. For
information on engine oil filler cap location, refer to
"Engine Compartment" in "Servicing And Maintenance"
for further information.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the rec-
ommended 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 recommends against the
addition of any additives (other than leak detection
dyes) to the engine oil. Engine oil is an engineered prod-
uct and its performance may be impaired by supple-
mental 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 an authorized dealer, service
station or governmental 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 dis-
posable oil filter. Use a filter of this type for replace-
ment. The quality of replacement filters varies consider-
ably. Only high quality filters should be used to ensure
most efficient service. Mopar® engine oil filters are
high quality oil filters and are recommended.
ENGINE AIR CLEANER FILTER
Refer to the "Maintenance Plan" in this section for the
proper maintenance intervals.
NOTE:
Be sure to follow the "Severe Duty Conditions" mainte-
nance interval if applicable.
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 neces-
sary for repair or maintenance. Make sure that no
one is near the engine compartment before starting
the vehicle with the air induction system (air cleaner,
hoses, etc.) removed. Failure to do so can result in
serious personal injury.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters
varies considerably. Only high quality filters should be
used to ensure most efficient service. Mopar® engine
air cleaner filters are a high quality filter and are
recommended.
Engine Air Cleaner Filter Inspection And
Replacement — Gas Engine
Inspect engine air cleaner filter for dirt and or debris, if
you find evidence of either dirt or debris you should
change your air cleaner filter.
Engine Air Cleaner Filter Removal
1. With suitable tool fully loosen (six) fasteners on air
cleaner filter.
Air Cleaner Filter
1 — Fasteners
2 — Air Hose Clamp
3 — Air Cleaner Cover
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