2019 Ram 3500 Oil Capacity & Filter

The 2019 Ram 3500 requires 12 quarts (11.3 liters) of 15W-40CJ-4 motor oil for the 6.7L Cummins Diesel engine, or 7 quarts (6.6 liters) of 5W-20 MS-6395 oil for the 6.4L Hemi gas engine.

Quick Answer

6.7L Cummins 24V Turbo Diesel:

• Oil Capacity: 12 quarts (11.3 Liters)
• Recommended Oil Weight: 15W-40
• Oil Type Specification: API CJ-4 or CJ-4/SN
• OEM Oil Filter: Mopar MO-285
• Aftermarket Oil Filter Cross-References:
  • Fram: CH11815
  • Wix: 57077
  • Mobil 1: M1C-251

6.4L Hemi V8 (Gasoline):

• Oil Capacity: 7 quarts (6.6 Liters)
• Recommended Oil Weight: 5W-20
• Oil Type Specification: API SN PLUS or later, meeting Chrysler Material Standard MS-6395
• OEM Oil Filter: Mopar MO-899
• Aftermarket Oil Filter Cross-References:
  • Fram: PH10060
  • Wix: 57899
  • Mobil 1: M1-113

Capacity by Engine Option

Oil Change Interval

6.7L Cummins Diesel:

• Normal Duty: Every 10,000 miles or 12 months, whichever comes first.
• Severe Duty (e.g., heavy towing, dusty conditions, extensive idling): Every 5,000 miles or 6 months, whichever comes first.

6.4L Hemi V8 (Gasoline):

• Normal Duty: The Engine Oil Change Indicator System will illuminate when an oil change is due, typically up to 10,000 miles or 12 months, whichever comes first.
• Severe Duty: If the vehicle is primarily operated under severe duty conditions, an oil change is recommended every 4,000 miles or 6 months, whichever comes first. Refer to your owner's manual for specific guidelines based on the oil change indicator system.

Drain Plug Torque

• 6.7L Cummins Diesel: 30 ft-lbs (40 Nm). Always use a new drain plug washer.
• 6.4L Hemi V8 (Gasoline): 20 ft-lbs (27 Nm). Always use a new drain plug washer.

Crush washers are critical for a leak-free seal. Never reuse an old one.

How to Change the Oil

1. Warm the Engine: Run the engine for a few minutes to bring the oil to operating temperature, ensuring it drains more easily.
2. Lift and Secure: Safely lift the front of the truck using a jack and secure it with jack stands. For the Cummins, access can be tight, so proper elevation is key.
3. Locate Drain Plug: Place a suitable drain pan beneath the drain plug.
4. Drain Oil: Carefully remove the drain plug and allow all the old oil to drain completely. Remove the old crush washer.
5. Replace Drain Plug: Install a new crush washer and tighten the drain plug to the specified torque.
6. Locate Oil Filter: Position the drain pan under the oil filter. For the Cummins, the filter is often on the passenger side near the front.
7. Remove Old Filter: Use an oil filter wrench to remove the old oil filter. Be prepared for some oil to spill.
8. Prepare New Filter: Apply a thin film of new oil to the gasket of the new oil filter.
9. Install New Filter: Hand-tighten the new oil filter until the gasket seats, then turn an additional 3/4 to 1 full turn. Do not overtighten.
10. Refill Oil: Lower the vehicle. Remove the oil fill cap and add the recommended amount and type of new oil.
11. Check Level: Start the engine and let it run for a few minutes to circulate the oil. Turn off the engine, wait a few minutes, and then check the oil level with the dipstick. Top off as needed.
12. Reset Oil Life Monitor: Follow your vehicle's instructions to reset the oil life monitor.

Common Issues / Tips (2019 Ram 3500)

• 6.7L Cummins Oil Filter Access: The oil filter on the Cummins can be somewhat challenging to reach without proper tools and a lifted vehicle. Consider using a strap wrench for easier removal.
• Regeneration and Oil Dilution (Diesel): For diesel models, frequent short trips or excessive idling can lead to incomplete Diesel Particulate Filter (DPF) regenerations. This can cause fuel dilution of the engine oil, which can shorten the effective life of the oil. It's crucial to monitor the oil change indicator and consider severe duty intervals if your driving habits include these conditions.
• Hemi MDS System: For 6.4L Hemi engines equipped with the Multi-Displacement System (MDS), using the exact specified oil weight (5W-20) and meeting the MS-6395 specification is paramount. Incorrect oil can affect MDS operation and potentially lead to lifter issues.
• Capacity Accuracy: Always double-check your owner's manual for the most precise and up-to-date information regarding oil capacity and specifications, as manufacturers can sometimes issue revisions.

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