Dealer Service; Engine Oil - Gas Engine - RAM 3500 2019 Owner's Manual

344 SERVICING AND MAINTENANCE
CAUTION!
It is essential when replacing the cables on

the battery that the positive cable is
attached to the positive post and the nega-
tive cable is attached to the negative post.
Battery posts are marked positive (+) and
negative (-) and are identified on the battery
case. Cable clamps should be tight on the
terminal posts and free of corrosion.
If a "fast charger" is used while the battery

is in the vehicle, disconnect both vehicle
battery cables before connecting the
charger to the battery. Do not use a "fast
charger" to provide starting voltage.

DEALER SERVICE

An authorized dealer has the qualified service
personnel, special tools, and equipment to
perform all service operations in an expert
manner. Service Manuals are available which
include detailed service information for your
vehicle. Refer to these Service Manuals before
attempting any procedure yourself.
NOTE:
Intentional tampering with emissions control
systems may void your warranty and could result
in civil penalties being assessed against you.
WARNING!
You can be badly injured working on or
around a motor vehicle. Only do service work
for which you have the knowledge and the
proper equipment. If you have any doubt
about your ability to perform a service job,
take your vehicle to a competent mechanic.
Engine Oil — Gas Engine
Change Engine Oil
The oil change indicator system will remind you
that it is time to take your vehicle in for
scheduled maintenance. Refer to the
"Maintenance Plan" for further information.
NOTE:
Under no circumstances should oil change
intervals exceed 8,000 miles (13,000 km),
twelve months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for
fleet customers.
Engine Oil Selection — 6.4L
For best performance and maximum protection
under all types of operating conditions, the
manufacturer only recommends engine oils
that are API Certified and meet the
requirements of FCA Material Standard
MS-12633.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends API
Certified engine oils.
This symbol certifies 0W-20, 5W-20, 0W-30,
5W-30 and 10W-30 engine oils.
CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.