RAM 1500 Owner's Manual page 869

Component
Engine Oil – 5.7L Engine
Engine Oil – 5.7L Engine 2500/3500 trucks operating
under a gross combined weight rating greater than
14,000 lbs/(6,350 kg.)
Engine Oil – 6.4L
MAINTAINING YOUR VEHICLE 867
Fluid, Lubricant, or Genuine Part
We recommend you use API Certified SAE 5W-20 Engine
Oil, meeting the requirements of FCA Material Standard
MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Refer
to your engine oil filler cap for correct SAE grade.
We recommend you use API Certified SAE 5W-30
Engine Oil, meeting the requirements of FCA Material
Standard MS-6395 such as MOPAR, Pennzoil, Shell
Helix or equivalent. Refer to your engine oil filler cap for
correct SAE grade.
For best performance and maximum protection under
all types of operating conditions, the manufacturer only
recommends full synthetic engine oils that meet the
American Petroleum Institute (API) categories of SN.
The manufacturer recommends the use of Pennzoil
Ultra 0W-40 or equivalent MOPAR engine oil meeting
the requirements of FCA Material Standard MS-12633
for use in all operating temperatures.
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