2019 Ram ProMaster Oil Capacity, Viscosity & Filter Specs

The 2019 Ram ProMaster takes 5.9 quarts (5.6 liters) of 5W-20 engine oil when changing the oil and filter on the 3.6L Pentastar V6 engine. Whether you are using your ProMaster as an Amazon delivery van, an RV conversion, or a contractor workhorse, keeping up with oil maintenance is the single most important factor for maximizing engine longevity.

Quick answer

• Oil Capacity: 5.9 quarts (5.6 liters) with filter change.
• Recommended Oil Weight: 5W-20 (Synthetic recommended for best protection).
• Oil Specification: API Certified SN or SP, meeting Chrysler MS-6395 material standard.
• OEM Oil Filter: Mopar MO-349 (Part # 68191349AA).
• Aftermarket Oil Filters: Fram CH11665, WIX WL10010, Mobil 1 M1C-254A.

Capacity by engine option

For the 2019 model year in the North American market, Ram simplified the ProMaster powertrain lineup. The previously available 3.0L EcoDiesel was discontinued for this platform, leaving the proven 3.6L Pentastar V6 as the sole engine option across the 1500, 2500, and 3500 chassis.

Oil change interval

Since the ProMaster is primarily a commercial vehicle, how you drive dictates your maintenance schedule. The 2019 ProMaster is equipped with an automatic Oil Life Indicator system that will alert you when a change is due, but you should adhere to these baseline intervals:

• Normal Duty: Up to 10,000 miles or 12 months, whichever comes first. This applies to lighter loads and mostly highway driving.
• Severe Duty: 4,000 to 5,000 miles or 6 months. This is strictly recommended for delivery vehicles, heavy towing, extensive idling, or constant stop-and-go city driving.

Never exceed 10,000 miles or 12 months between oil changes, regardless of what the dash indicator says.

Drain plug torque

• Drain Plug Torque: 20 ft-lbs (27 Nm).
• Note: The 3.6L Pentastar uses a standard 13mm drain plug bolt. Always inspect the integrated rubber seal on the drain plug. If the seal is flattened, cracked, or missing, replace the drain plug to prevent slow leaks.

How to change the oil

Changing the oil on the 2019 Ram ProMaster is straightforward, especially thanks to the top-mounted cartridge oil filter.

1. Prepare the Vehicle: Park on a level surface, set the parking brake, and allow the engine to cool slightly so the oil flows well without burning your hands.
2. Remove the Filter: Open the hood and locate the oil filter housing on top of the engine, slightly toward the driver's side. Use a 24mm socket to loosen and remove the plastic cap. Pull the old paper cartridge filter out.
3. Install the New Filter: Snap the new filter cartridge into the cap. Use a pick to remove the old O-ring from the cap, lubricate the new O-ring with fresh oil, and install it. Thread the cap back into the housing and torque it to 18 ft-lbs (25 Nm). Do not overtighten, or you will crack the plastic housing!
4. Drain the Oil: Position a drain pan under the engine oil pan. Remove the 13mm drain plug and allow the oil to drain completely. Reinstall the drain plug and torque to 20 ft-lbs.
5. Refill and Verify: Pour 5.9 quarts of 5W-20 oil into the oil filler neck. Reinstall the cap, start the engine, and let it idle for 30 seconds to circulate the oil. Check underneath for leaks. Turn off the engine, wait five minutes, and check the dipstick to ensure the oil level is at the "MAX" mark.
6. Reset the Oil Light: Turn the ignition to the "ON/RUN" position (engine off). Fully depress the accelerator pedal slowly three times within 10 seconds. Turn the ignition off.

Common issues / tips

• Oil Filter Housing Cracks: The 3.6L Pentastar is notorious for leaking oil from the top-mounted oil filter/cooler housing. This is often caused by mechanics overtightening the plastic oil filter cap. Always use a torque wrench set to 18 ft-lbs (25 Nm) on the cap, and never use an impact tool. If you see oil pooling in the engine valley, the housing assembly likely needs replacement.
• O-Ring Placement: When replacing the O-ring on the filter cap, ensure it sits in the specific groove designed for it, not pushed all the way up against the flange. If placed incorrectly, it will cause a massive oil leak on startup.
• High Idling Hours: For commercial vans, engine run hours are just as critical as mileage. If your ProMaster idles frequently, change the oil much sooner than the mileage indicates.

Need an oil change? Find a trusted shop on Repairius.