2013–2018 Ram 2500 / 3500 6.7L Cummins diesel maintenance schedule
From the factory owner's manual. "Severe" is the schedule the manual gives for towing, plowing, heavy loads, lots of idling, dusty roads or extreme temperatures. Your truck's own manual and dash reminders come first.
From the 2016 diesel supplement; other years of this generation may differ slightly.
| Item | Normal driving | Severe use |
|---|---|---|
| Oil and filter changeOr sooner when the dash shows Oil Change Required. Never more than 10,000 miles or 12 months. Fill the DEF tank and drain water from the fuel filter at every oil change. | Every 10,000 miles or 1 year | Every 10,000 miles or 1 year |
| Tire rotationRam lists this at every oil change. | Every 10,000 miles or 1 year | Every 10,000 miles or 1 year |
| Inspect front suspension and tie rod ends | Every 20,000 miles or 2 years | Every 20,000 miles or 2 years |
| Replace fuel filterEvery second oil change, never more than 20,000 miles. | Every 20,000 miles | Every 20,000 miles |
| Replace engine air filter | Every 30,000 miles or 3 years | Every 30,000 miles or 3 years |
| Change transfer case fluid (4x4) | Every 120,000 miles | Every 60,000 miles |
| Flush and replace engine coolant | Every 150,000 miles or 10 years | Every 150,000 miles or 10 years |