The 3.6L RAM typically requires 0W-20 full-synthetic motor oil; if 0W-20 isn’t available, 5W-20 can be used as a temporary alternative, but 0W-20 remains the preferred choice.
Oil type and specifications
Key specifications and guidance from the official manuals for the 3.6L Pentastar engine are summarized below.
- 0W-20 full-synthetic motor oil (preferred)
- 5W-20 may be used if 0W-20 is not available (temporary)
- Oil should meet API SP or newer and ILSAC GF-6 specifications
- Choose a viscosity and grade that aligns with the OEM’s recommendations for your climate and driving conditions
In practice, use 0W-20 synthetic oil as the standard to maximize fuel economy and protection. If you must substitute, revert to 0W-20 as soon as possible.
Capacity and maintenance intervals
Details on how much oil the engine holds and when to change it are provided below.
- Oil capacity: Approximately 5.9 quarts (5.6 L) with the oil filter
- Change intervals: Follow the vehicle’s owner's manual; with synthetic oil, many RAM owners run intervals around 7,500 miles under normal driving—check your manual for the exact schedule
Always refer to the owner's manual for the exact capacity and service interval for your specific RAM model year and drivetrain configuration.
Where to verify in your manual
Look in the maintenance or lubrication section of the RAM owner's manual for the exact specification, including the recommended viscosity, latest API/ILSAC standards (GF-6), and the permissible alternatives for your region.
Tips for climate and driving style
In colder climates, 0W-20 helps with cold-start protection and fuel efficiency, while in hotter climates the same grade still provides adequate protection due to the engine’s thermal management and the properties of synthetic oil.
Summary
For the 3.6L RAM, the primary oil recommendation is 0W-20 full-synthetic oil, with 5W-20 as a temporary backup if needed. Ensure the oil meets API SP and GF-6 specifications, and plan for roughly 5.9 quarts of oil plus a filter, following the maintenance schedule in your owner's manual.