RAM 1500 2020 Owner's Manual page 360

358 SERVICING AND MAINTENANCE
Mileage or time passed (whichever
comes first)
Or Years:
Or Kilometers:
If equipped with Stop/Start, replace
accessory drive belt with OEM grade
Mopar belt.
1
Replace spark plugs.
Flush and replace the engine coolant
at 10 years or 150,000 miles
(240,000 km) whichever comes first.
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 neces-
sary.
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
2 3 4 5 6
X
7 8 9 10
X
X
X
11 12 13 14
X
X
15
X
X