What kind of oil does a Ram Promaster take?
The Ram ProMaster’s oil requirements depend on which engine it has. For the gas-powered 3.6L V6, use a full-synthetic oil in the 0W-20 (or 5W-20) range that meets the vehicle’s OEM specification. For the 3.0L EcoDiesel, use a full-synthetic 5W-40 oil that meets diesel-engine standards. Always verify the exact specification in your owner’s manual or with a Ram dealer.
In practice, the ProMaster line offers two main engine choices across recent years: a gasoline 3.6L Pentastar V6 and a 3.0L EcoDiesel. Oil requirements vary by engine, climate, and model year, and using the wrong oil can affect performance, fuel economy, and warranty coverage. The sections below outline typical recommendations and how to verify them.
Gasoline ProMaster: 3.6L V6 Pentastar
If your ProMaster uses the 3.6L gasoline engine, the following guidelines apply. Exact specifications can vary by year, so consult the owner’s manual for your specific vehicle.
- Viscosity: 0W-20 or 5W-20 synthetic oil, depending on climate and model year
- Oil type: full-synthetic recommended for engine protection and longevity
- Standards: oil should meet the OEM specification for the 3.6L Pentastar (check your manual; many markets require a Mopar-approved spec or equivalent)
- Capacity: typically around 5 quarts plus a new filter (verify exact capacity in the manual)
Note: Always replace the oil filter with a quality filter and follow the recommended oil-change interval in the manual.
Diesel ProMaster: 3.0L EcoDiesel
If your ProMaster is equipped with the 3.0L EcoDiesel, use the following guidelines. As with the gasoline variant, confirm the exact spec for your year and market in the owner’s manual.
- Viscosity: 5W-40 full synthetic oil
- Standards: oil should meet diesel-engine specifications such as API CK-4/CJ-4 and/or ACEA C3; some markets may require Dexos2-compatible oils
- Capacity: varies by configuration; check the manual for the correct oil capacity
- Change interval: follow the manufacturer’s recommended schedule; diesel engines often have different drain intervals than gasoline engines
Diesel engines require oils formulated for diesel exhaust aftertreatment and higher thermal loads; always use oil that meets the specified standards for the EcoDiesel and your region.
Summary
In short, the Ram ProMaster’s oil type is engine-specific. Gasoline-propelled models with the 3.6L V6 typically use a full-synthetic 0W-20 or 5W-20 oil that meets the OEM spec, while EcoDiesel models with the 3.0L engine require a full-synthetic 5W-40 that meets diesel-engine standards. Always consult the owner’s manual or a Ram dealer to confirm the exact viscosity, specification, and capacity for your vehicle’s model year and region, and use synthetic oil with appropriate change intervals.
