2023–2026 Ford F-250 / F-350 Super Duty 6.7L Power Stroke 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 2025 owner's manual; other years of this generation may differ slightly. Ford says to change the oil when the dash asks (within 500 miles), and never go more than 15,000 miles or one year between changes on diesels. We remind you at 10,000 miles or a year to stay well inside that limit.
| Item | Normal driving | Severe use |
|---|---|---|
| Oil and filter changeOr sooner when the dash says. Ford's oil-life monitor typically calls for it at 7,500–10,000 miles in normal use and 5,000–7,500 when towing. Refill the DEF tank at every oil change. | Every 10,000 miles or 1 year | Every 10,000 miles or 1 year |
| Inspect steering linkage, ball joints, tie-rod ends and U-joints; grease any fittingsFord lists this at every oil change. | Every 10,000 miles or 1 year | Every 10,000 miles or 1 year |
| Tire rotationFord lists this at every oil change. | Every 10,000 miles or 1 year | Every 10,000 miles or 1 year |
| Change brake fluid | Every 3 years | Every 3 years |
| Replace both fuel filters (engine and frame mounted)Or sooner if the dash asks. Drain the water separator when needed. | Every 30,000 miles | Every 15,000 miles |
| Replace cabin air filter | Every 20,000 miles | Every 20,000 miles |
| Replace engine air filter | Every 30,000 miles | Every 30,000 miles |
| Change engine coolant | First at 200,000 miles or 10 years, then every 100,000 miles or 5 years | First at 200,000 miles or 10 years, then every 100,000 miles or 5 years |
| Change automatic transmission fluid and filter | Every 150,000 miles | Every 150,000 miles |
| Change transfer case fluid (4x4) | Every 150,000 miles | Every 50,000 miles |