Maintenance Schedule 2026 Ford F-450 · 6.7L V8 Power Stroke
Normal Service Severe Service
The 2026 Ford F-450 6.7L Power Stroke diesel follows Ford's normal-service schedule with conservative 5,000-mile oil changes, fuel filter service every 15,000 miles, and diesel-specific maintenance including DEF system and DPF service.
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⚙️ Engine
Engine oil and filter
5,000 mi / 6 mo
OLP recommends 5,000 mi even when manufacturer claims longer — extended-interval programs shorten engine life. Use 10W-30 CK-4 diesel oil.
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Engine oil and filter (severe service)
5,000 mi / 6 mo
Matches normal service interval. Use 10W-30 CK-4 diesel oil for towing, idling, or dusty conditions.
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Fuel filter water separator drain
5,000 mi
Drain water from fuel filter housing at every oil change.
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Fuel filter
15,000 mi / 12 mo
Critical for diesel fuel system protection. Replace more frequently if using biodiesel or in contaminated fuel conditions.
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Engine air filter
30,000 mi / 36 mo
Inspect at every oil change; replace as needed or at interval. Replace more frequently in dusty conditions.
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PCV valve and breather inspection
60,000 mi
Inspect crankcase ventilation system for restrictions or oil buildup.
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EGR system cleaning
97,500 mi
Ford recommends EGR valve and cooler cleaning at 97,500 miles and 195,000 miles to prevent buildup and failure.
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Accessory drive belt
150,000 mi / 120 mo
Inspect at every oil change for wear, cracking, or glazing.
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🔩 Drivetrain
Driveshaft and CV joint inspection
20,000 mi / 12 mo
Check U-joints for play and CV boots for tears or grease leakage.
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Automatic transmission fluid and filter
150,000 mi
TorqShift 10-speed transmission. Change at 50,000 miles if towing regularly or operating in severe service.
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Front differential fluid
150,000 mi
Use synthetic SAE 75W-140 gear oil. Change at 50,000 miles for severe service (towing, off-road).
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Rear differential fluid
150,000 mi
Use synthetic SAE 75W-140 gear oil. Change at 50,000 miles for severe service (towing, off-road).
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Transfer case fluid
150,000 mi
4WD models only. Use Motorcraft transfer case fluid. Change at 50,000 miles for severe service.
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🛞 Brakes
Brake inspection
20,000 mi / 12 mo
Inspect pads, rotors, calipers, hoses, and parking brake.
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Flush and replace every 3 years regardless of mileage. Use DOT 4 LV fluid.
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💧 Fluids
Coolant supplement additive
15,000 mi / 12 mo
Add Motorcraft diesel cooling system supplement at each fuel filter change to protect EGR cooler and engine.
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Engine coolant
105,000 mi / 120 mo
First change at 100,000 miles or 10 years, then every 105,000 miles or 10 years. Use Motorcraft Gold coolant.
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DEF (diesel exhaust fluid)
as needed
Top off as needed; tank capacity approximately 5.7 gallons. Do not allow to run empty.
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🛞 Tires
Dual rear wheels require specific rotation pattern. Inspect tire pressure and condition at every rotation.
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🔍 Inspection
Wheel alignment inspection
20,000 mi / 12 mo
Check alignment annually or if vehicle pulls or tires wear unevenly.
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Steering and suspension inspection
20,000 mi / 12 mo
Inspect ball joints, tie rod ends, steering linkage, shocks, and bushings for wear or damage.
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Body and paint inspection
20,000 mi / 12 mo
Check for paint chips, rust, and corrosion especially on frame and undercarriage. Clean and lubricate hinges and latches.
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⚡ Electrical
Battery and charging system inspection
20,000 mi / 12 mo
Check battery condition, terminals, cables, and charging system output. Dual batteries on diesel.
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💨 Exhaust
Exhaust system inspection
20,000 mi / 12 mo
Inspect for leaks, damage, and loose components. Check DPF and DEF system.
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DPF (diesel particulate filter) service
as needed
System regenerates automatically. If regen messages appear frequently, have system inspected. Avoid short trips and excessive idling.
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❄️ HVAC
Cabin air filter
20,000 mi / 12 mo
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About this schedule: AI-generated to match the manufacturer's published recommendations for this exact engine. Severe-service intervals apply if you frequently make short trips, drive in dusty conditions, tow, or deal with extreme heat or cold. Always consult your owner's manual for warranty-required services.