Ram Chassis Cab Oil Change Guide
Oil Types, Capacities & Service Intervals for Every Ram Chassis Cab Engine
Proudly serving Brevard, Asheville, Hendersonville, Fletcher & Cherokee NC
Ram Chassis Cab Oil Change Specifications
Ram Chassis Cab trucks (3500/4500/5500) are built for upfitters and commercial fleets. They use the same Cummins 6.7L Turbo Diesel and 6.4L HEMI V8 engines as the 2500/3500 pickups — but commercial duty cycles mean shorter service intervals and stricter maintenance. Our Cummins-trained team handles every Chassis Cab service.
| Engine | Oil Type | Capacity | Filter | Interval |
|---|---|---|---|---|
| 6.4L HEMI V8 (3500 Chassis Cab) | SAE 0W-40 Full Synthetic | 7.0 quarts | Mopar MO-491 | 7,500 miles (severe-duty commercial) |
| 6.7L Cummins Turbo Diesel (all Chassis Cab) | SAE 15W-40 CES 20081 | 12.0 quarts | Cummins LF16035 | 7,500 miles (severe-duty commercial) |
Engine-Specific Oil Details
6.4L HEMI V8 (3500 Chassis Cab)
Oil Type: SAE 0W-40 Full Synthetic
Capacity: 7.0 quarts
Recommended Interval: 7,500 miles (severe-duty commercial)
Gas HD option on 3500 Chassis Cab. Commercial use means severe-duty oil change intervals.
6.7L Cummins Turbo Diesel (all Chassis Cab)
Oil Type: SAE 15W-40 CES 20081
Capacity: 12.0 quarts
Recommended Interval: 7,500 miles (severe-duty commercial)
Standard engine on 4500 and 5500 Chassis Cab — the workhorse Cummins. Commercial duty cycles require severe-duty intervals.
Oil Change Tips for Your Ram Chassis Cab
- Commercial duty cycles count as severe-duty — change oil at 7,500 miles maximum.
- Heavy idling (common in commercial use) is severe-duty operation regardless of mileage.
- Use diesel-spec oil meeting CES 20081.
- Fleet operators should maintain detailed maintenance records — call us about fleet service programs.
- Fuel filter and DEF service are critical for emissions compliance.
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 Chassis Cab 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 Chassis Cab.
Mahon CDJR — proudly serving Brevard, Asheville, Hendersonville, Fletcher & Cherokee NC.
Created July 22, 2026 by MM Dealer Advocates