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•
More than 50% of your driving is at sustained high
speeds during hot weather, above 32°C (90°F)
•
Trailer towing
•
Heavy Loading
•
Taxi, Police or delivery service (commercial service)
•
Off-road or desert operation
•
If equipped for and operating with E-85 (ethanol)
fuel.
NOTE: If ANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule “B” of the
⬙Maintenance Schedules⬙ section of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on schedule ⬙A⬙ of the ⬙Mainte-
nance Schedules⬙ section of this manual.
Dusty Conditions
Driving through dust-laden air increases the problems of
keeping abrasive materials out of the engine. Under these
conditions, special attention should be given to the
engine air cleaner, the crankcase inlet air cleaner and the
crankcase ventilation system. Make sure that these units
are clean at all times. This will tend to reduce to a
minimum the amount of abrasive material that may enter
the engine.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacture only
recommends engine oils that are API certified and meet
the requirements of DaimlerChrysler Material Standard
MS-6395. Use Mopar or an equivalent oil meeting the
specification MS-6395.
MAINTAINING YOUR VEHICLE 433
7
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