| Duty Cycle* | Light Duty | Normal Duty | Severe Duty | | Oil and Filter | 35,000 mi
56,000 km | 25,000 mi
40,000 km | 15,000 mi
24,000 km | | Fuel Filter | 25,000 mi
40,000 km | 25,000 mi
40,000 km | 25,000 mi
40,000 km | | Coolant Filter** | 50,000 mi
80,000 km | 50,000 mi
80,000 km | 50,000 mi
80,000 km | | Valve Adjustment | 500,000 mi
800,000 km | 500,000 mi
800,000 km | 500,000 mi
800,000 km | | Coalescing Filter | 125,000 mi
200,000 km | 125,000 mi
200,000 km | 125,000 mi
200,000 km | | Particulate Filter Cleaning** | 200,000-400,000 mi (320,000-640,000 km) |
*Light Duty = >6.5 mpg, Normal Duty = 5.5-6.5 mpg, Severe Duty <5.5 mpg
**Intervals using CJ-4 oil
***With appropriate filter The Cummins Particulate Filter is designed to last the life of your engine. Regeneration is fully automated and controlled by the ECM.
See owner's manual for specific requirements.
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