RAM Commercial CHASSIS CAB 3500 2021 Owner's Manual page 358

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356
SERVICING AND MAINTENANCE
Mileage or time passed (whichever comes first)
Or Years:
Or Kilometers:
Change the automatic transmission fluid and sump filter
(AS66RC Transmission Only).
Inspect the transfer case fluid, change for any of the following:
police, taxi, fleet, or frequent trailer towing.
Change the transfer case fluid.
Inspect and replace PCV valve if necessary.
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
WARNING!
You can be badly injured working on or
around a motor vehicle. Do only service
work for which you have the knowledge and
the right equipment. If you have any doubt
about your ability to perform a service job,
take your vehicle to a competent mechanic.
WARNING! (Continued)
Failure to properly inspect and maintain your
vehicle could result in a component malfunc-
tion and effect vehicle handling and perfor-
mance. This could cause an accident.
(Continued)
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