2023 Ford F-250 Super Duty maintenance schedule

Applies to: 6.7L Power Stroke V8 turbodiesel

Schedule type: factory_with_oil_life_monitor

Change the engine oil and filter when the Intelligent Oil-Life Monitor asks (Ford's guide: about 7,500-10,000 miles in normal use), but never more than 1 year, 10,000 miles, or 350 engine hours apart. At each oil change, also drain the fuel/water separator if needed, top up DEF, and rotate the tires.

Checked against the official document for model year 2023; other years in this range are assumed to follow it. Confirm in your owner's manual.

20,000 miles

Replace the cabin air filter replaceDIY

30,000 miles

Replace the engine air filter replaceDIY
Replace the engine-mounted and frame-mounted fuel filters replaceShop

50,000 miles

Replace the engine air inlet foam filter replaceDIY

60,000 miles

Replace front wheel bearing grease and grease seal (2WD with non-sealed bearings only) replaceShop

150,000 miles

Change the automatic transmission fluid and filter replaceShop
Replace the accessory drive belt(s) if not replaced within the last 100,000 mi replaceShop
Replace front wheel bearings and seals (2WD with non-sealed bearings only) replaceShop
Change the axle fluid (see manual exceptions) replaceShop
Change the transfer case fluid (if equipped) replaceShop

200,000 miles / 120 months

Change the engine and secondary cooling system coolant (first change; then every 5 years or 100,000 mi) replaceShop

Sources

Ford 2023 Super Duty Owner's Manual: Normal Scheduled Maintenance - Diesel (official, fordservicecontent.com) (official)

Always follow the owner's manual for your exact vehicle; intervals can differ by engine and market.