2022 Ram 3500 Oil Capacity & Filter Reference Guide

The 2022 Ram 3500 takes 12.0 quarts (11.4L) of oil if equipped with the 6.7L Cummins Turbo Diesel, while the 6.4L HEMI V8 requires 7.0 quarts (6.6L).

Whether you are hauling heavy loads across the country or using your heavy-duty Ram on the job site, maintaining clean engine oil of the correct viscosity is the single most important maintenance item to keep your powertrain running strong. Below, you will find all the specifications, filter part numbers, and expert tips you need to perform an oil service on your 2022 Ram 3500.

Quick Answer

Here is the quick specification breakdown for the most common 2022 Ram 3500 configuration (the 6.7L Cummins Turbo Diesel):

• Total Capacity: 12.0 quarts (11.4 liters) with filter change.
• Recommended Oil Weight: 5W-40 Full Synthetic (Highly recommended for all climates) or 15W-40 (Conventional or Synthetic, if ambient temperatures remain above 0°F).
• Oil Specification: API CK-4 / Chrysler Material Standard MS-10902.
• OEM Oil Filter Part Number: Mopar MO-285 (Part # 5083285AA) or Fleetguard LF16035 (Stratapore) / LF3972 (Cellulose).
• Aftermarket Cross-References: WIX 57620, Fram PH3976A, Mobil 1 M1-403A.

Note: If you have the 6.4L HEMI V8, see the table below for your specific engine specs.

Capacity by Engine Option

The 2022 Ram 3500 was offered with a gas V8 and two variations of the inline-six diesel. Oil capacities are identical between the standard and High Output (HO) diesel engines.

Oil Change Interval

Following the correct interval is critical, especially for modern diesel emission systems.

6.7L Cummins Diesel:

• Normal Duty: Do not exceed 15,000 miles, 500 engine hours, or 6 months—whichever comes first, or when prompted by the Oil Life Monitor.
• Severe Duty: If idling extensively, driving in dusty conditions, or towing near maximum capacity frequently, replace oil and filter every 10,000 miles, 400 hours, or 6 months.

6.4L HEMI V8 Gas:

• Normal Duty: Up to 8,000 miles, 500 hours, or 12 months, guided by the dashboard indicator.
• Severe Duty: 4,000 to 5,000 miles or 6 months for heavy towing and off-road fleet use.

Drain Plug Torque

Do not over-tighten the oil pan drain plug. Stripping the threads on a Cummins oil pan is a costly mistake.

• 6.7L Cummins: 37 ft-lbs (50 Nm). The diesel drain plug uses a permanent elastomer seal integrated into the plug flange; inspect it for tears, but a separate crush washer is not typically replaced unless the seal is damaged.
• 6.4L HEMI V8: 20 ft-lbs (27 Nm).

How to Change the Oil

1. Prepare the Vehicle: Park on a level surface, set the parking brake, and let the engine cool slightly so the oil is warm but not dangerously hot.
2. Drain the Oil: Place a high-capacity catch pan (at least 15 quarts for the Cummins) under the oil pan. Remove the drain plug and let it drain completely. Reinstall and torque the plug.
3. Remove the Filter:
   • For the Cummins: The best access to the oil filter is often through the passenger-side front wheel well. Use a cap wrench. To avoid a mess, thread a special oil filter plug tool into the top of the filter before angling it out of the chassis.
   • For the 6.4L: Accessed from underneath the vehicle.
4. Install the New Filter: Lubricate the rubber gasket on the new filter with clean engine oil. Pre-fill the Cummins filter slightly if possible, taking care not to spill. Spin it on until the gasket makes contact, then tighten 3/4 to 1 full turn by hand.
5. Refill: Add the required amount of specified oil through the oil filler neck.
6. Verify: Start the engine and let it run for 30 seconds. Check for leaks underneath. Turn the engine off, wait 5 minutes, and check the dipstick to ensure the level is at the "MAX" line.

Common Issues / Tips

• Cummins Filter Mess: Removing the Cummins oil filter from the tight engine bay without spilling oil is notoriously tricky. Investing in an aftermarket T-handle oil filter plug that caps the threaded end of the filter will save your suspension parts from being coated in old diesel oil.
• Fuel Dilution: In the 6.7L Cummins, active DPF regeneration cycles can cause a small amount of diesel fuel to bypass the rings and dilute the oil. This is why adhering to the 6-month interval is critical, even if you haven't hit the mileage limit.
• HEMI Tick: The 6.4L V8 requires specifically formulated 0W-40 full synthetic oil. Using cheaper conventional oils or the wrong viscosity can lead to inadequate lubrication of the variable valve timing system and lifters, often exacerbating the infamous "Hemi tick."

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