Ram 2500 Oil Change Guide
Oil Types, Capacities & Service Intervals for Every Ram 2500 Engine
Proudly serving Brevard, Asheville, Hendersonville, Fletcher & Cherokee NC
Ram 2500 Oil Change Specifications
The Ram 2500 heavy-duty pickup offers two engines: the 6.4L HEMI V8 (gas) and the legendary 6.7L Cummins Turbo Diesel I-6. Each has very different oil specs, capacities, and intervals. Cummins owners in particular should pay close attention to oil and filter quality. Our Mopar-certified team handles both gas and diesel service with OEM-spec parts.
| Engine | Oil Type | Capacity | Filter | Interval |
|---|---|---|---|---|
| 6.4L HEMI V8 (Gas) | SAE 0W-40 Full Synthetic | 7.0 quarts | Mopar MO-491 | 10,000 miles |
| 6.7L Cummins Turbo Diesel I-6 (Standard) | SAE 15W-40 CES 20081 | 12.0 quarts | Cummins LF16035 | 15,000 miles (light use) / 7,500 miles (severe-duty) |
| 6.7L Cummins Turbo Diesel I-6 (High-Output) | SAE 15W-40 CES 20081 | 12.0 quarts | Cummins LF16035 | 15,000 miles (light use) / 7,500 miles (severe-duty) |
Engine-Specific Oil Details
6.4L HEMI V8 (Gas)
Oil Type: SAE 0W-40 Full Synthetic
Capacity: 7.0 quarts
Recommended Interval: 10,000 miles
Gas heavy-duty engine producing 410 hp and 429 lb-ft. Requires 0W-40 full synthetic — heavier weight than 1500 HEMI due to higher duty cycle.
6.7L Cummins Turbo Diesel I-6 (Standard)
Oil Type: SAE 15W-40 CES 20081
Capacity: 12.0 quarts
Recommended Interval: 15,000 miles (light use) / 7,500 miles (severe-duty)
The legendary Cummins inline-six diesel producing 370 hp and 850 lb-ft. Uses heavy-duty diesel-spec 15W-40 conventional oil — full synthetic 5W-40 also approved.
6.7L Cummins Turbo Diesel I-6 (High-Output)
Oil Type: SAE 15W-40 CES 20081
Capacity: 12.0 quarts
Recommended Interval: 15,000 miles (light use) / 7,500 miles (severe-duty)
High-output Cummins producing 430 hp and 1,075 lb-ft — the most powerful Ram heavy-duty diesel. Same oil specs as standard Cummins.
Oil Change Tips for Your Ram 2500
- Cummins owners: change oil at 7,500 miles for severe-duty use (frequent towing, idling, dusty conditions).
- Use only diesel-spec oil meeting CES 20081 — never substitute light-duty gas-engine oil.
- Fuel filter and water separator service is also critical for Cummins — typically every 15,000 miles.
- DEF (Diesel Exhaust Fluid) levels should be checked at every service.
- HEMI 6.4L requires 0W-40 specifically — substituting 5W-30 or 5W-20 can damage the engine.
What's Included in Every Oil Change at Mahon CDJR
Every oil change at Mahon CDJR includes a complimentary multi-point inspection performed by factory-trained Mopar technicians. We replace your oil and filter with the OEM-spec full synthetic oil your Ram 2500 requires, then check fluid levels, inspect battery and terminals, verify tire pressure and wear, and examine your brake pads. You leave with a complete snapshot of your vehicle's health — not just fresh oil.
Note on Pricing: Oil change cost varies by engine and oil type. Diesel and PHEV models often use specialty oils that affect pricing. Call (828) 492-2121 for a precise estimate for your specific Ram 2500.
Mahon CDJR — proudly serving Brevard, Asheville, Hendersonville, Fletcher & Cherokee NC.
Created July 22, 2026 by MM Dealer Advocates