2023 FORD SUPER DUTY engine

Other Maintenance items1
Inspect the accessory drive belt or belts.3
Inspect the accessory drive belt or belts.4At 90,000 mi(144,000 km)
Replace the accessory drive belt(s).3Every 100,000 mi(160,000 km)
Change the automatic transmission fluid and filter. Consultdealer for requirements.
Every 150,000 mi(240,000 km)
Replace the accessory drive belt or belts if not replacedwithin the last 100,000 mi (160,000 km)
Replace the front wheel bearings and seals if using non-sealed bearings. Two-wheel drive vehicles.
Change the axle(s) fluid. See exceptions.
Change the transfer case fluid, if equipped.
Change the engine and secondary cooling system coolant.5At 200,000 mi(320,000 km)
1 You can perform these maintenance items within 3,000 mi (4,800 km) of the last oilchange. Do not exceed the designated distance for the interval.2 Reset the engine air filter information monitor after you replace the air filter.3 Only for vehicles with pickup bed power outlet.4 Perform follow-up inspections every 15,000 mi (24,000 km) after the initial inspection.Replace the belt or belts at 150,000 mi (240,000 km).5 Initial replacement at 10 years or 200,000 mi (320,000 km), then every 5 years or100,000 mi (160,000 km).
NORMAL SCHEDULED
MAINTENANCE - GASOLINE
Intelligent Oil-Life Monitor
Your vehicle comes with an IntelligentOil-Life Monitor that determines when youshould change the engine oil based on howyou use your vehicle.
Your vehicle lets you know when an oilchange is due by displaying a message inthe instrument cluster display.
The following table provides examples ofvehicle use and its impact on oil changeintervals. It is a guideline only. Actual oilchange intervals depend on several factorsand generally decrease with severity ofuse.
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When to Expect the Message Prompting You to Change Your Oil
Vehicle Use and Examplemi (km)
Normal
7,500–10,000 mi(12,000–16,000 km)
Normal commuting with highway driving.No, or moderate, load or towing.Flat to moderately hilly roads.No extended idling.
Severe
5,000–7,500 mi(8,000–12,000 km)
Moderate to heavy load or towing.Mountainous or off-road conditions.Extended idling, 200-300 hours.Extended hot or cold operation.
Extreme2,500–5,000 mi(4,000–8,000 km)Maximum load or towing.Extreme hot or cold operation.
Note:For every hour that your vehicle idles, it accumulates the equivalent of approximately25 mi (40 km).
Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Instrument Cluster Display
Change the engine oil and filter.1
Rotate the tires, inspect tire wear and measure the tread depth.2
Inspect the wheels and related components for abnormal noise, wear, looseness ordrag.
Perform multi-point inspection - recommended.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
Inspect the engine coolant concentration, freeze-point protection, level and the hoses.
Inspect the exhaust system and heat shields.
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At Every Oil Change Interval as Indicated by the Instrument Cluster Display
Inspect the front axle and U-joints. If applicable, lubricate the grease fittings. Four-wheeldrive vehicles.
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and the U-joints. If applicable, lubricate the grease fittings.
1 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.2 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotatethe rear wheels if you notice unusual wear.
Brake Fluid Maintenance1
Change the brake fluid.2Every three years
1 Perform this maintenance item every three years. Do not exceed the designated timefor the interval.2 Brake fluid servicing requires special equipment available at your authorized dealer.
Other Maintenance Items
Replace the cabin air filter.Every 20,000 mi(32,180 km)
Replace the engine air filter.Every 30,000 mi(48,000 km)
Replace the front wheel bearing grease and grease seal, ifyou use non-sealed bearings.Every 60,000 mi(96,000 km)
Replace the spark plugs.Every 100,000 mi(160,934 km)
Inspect the accessory drive belt or belts.1Every 100,000 mi(160,934 km)
Change the automatic transmission fluid and filter on 6-speedtransmission. Consult dealer for requirements.
Every 150,000 mi(240,000 km)
Replace the accessory drive belt or belts if not replaced withinthe last 100,000 mi (160,000 km).
Replace the front wheel bearings and seals if you use non-sealed bearings.
Change the axle(s) fluid. See exceptions.
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Other Maintenance Items
Change the transfer case fluid, if applicable.
Change the engine coolant.2At 200,000 mi(320,000 km)
1 If not replaced, inspect the belt or belts every 15,000 mi (24,000 km).2 Initial replacement at 10 years or 200,000 mi (320,000 km), then every 5 years or100,000 mi (160,000 km).
SPECIAL OPERATING
CONDITIONS SCHEDULED
MAINTENANCE - DIESEL
If you operate your vehicle primarily in anyof the following conditions, you need toperform extra maintenance as indicated.If you operate your vehicle occasionallyunder any of these conditions, it is notnecessary to perform the extramaintenance. For specificrecommendations, see your dealershipservice advisor or technician.
Towing a Trailer or Using a Car-top Carrier
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
See the axle maintenance items under Exceptions.
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km) or six months,600 engine hours
Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)Every 30,000 mi(48,000 km)
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Frequent or Extended Idling (Over 10 Minutes Per Hour of Normal Driving) or FrequentLow-speed Operation if your Vehicle is Used for Stationary Operation
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Frequent Low-speed Operation, Consistent Heavy Traffic Under 25 mph (40 km/h) orLong Rush-hour Traffic
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Sustained High-speed Driving at Gross Vehicle Weight Rating (Maximum Loaded Weightfor Vehicle Operation)
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)Every 30,000 mi(48,000 km)
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Operating in Sustained Ambient Temperatures Below -9°F (-23°C) or Above 100°F (38°C)
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)Every 30,000 mi(48,000 km)
Operating in Dusty or Sandy Conditions (Such as Unpaved or Dusty Roads)
Rotate the tires, inspect the tires for wear and measure
tread depth.1Every 7,500 mi (12,000 km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
Change the engine oil and filter.2Every 7,500 mi (12,000 km),six months or 300 enginehoursInspect and lubricate the U-joints.
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), 6 months or600 engine hours
Replace the air inlet foam filter.Every 30,000 mi(48,000 km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Rotate therear wheels if unusual wear is noted.2 Reset the Oil Change Reminder after engine oil and filter changes.
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Off-road Operation
Inspect functional holes in each leg of the twin exhausttips and the holes under the shield just inboard of the rightrear tire to make sure they are clean and clear of debris orforeign materials. Refer to the Vehicle Care chapter of yourowner’s manual for more information.
As required
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
Rotate the tires, inspect the tires for wear and measure
tread depth.1Every 7,500 mi (12,000 km),six months or 300 enginehours
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Change the engine oil and filter.2Every 7,500 mi (12,000 km)or 300 engine hours
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Replace the air inlet foam filter.Every 30,000 mi(48,000 km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles).
Change the rear axle fluid (Dana rear axles only - some F-350s; all F-450s and F-550s).Every 50,000 mi(80,000 km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Rotate therear wheels if unusual wear is noted.2 Reset the Oil Change Reminder after engine oil and filter changes.
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Using Biodiesel, up to and Including 20% Biodiesel (B20)
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or300 engine hours
Using Fuel Other Than Ultra-low Sulfur Diesel Fuel - Vehicles Operated Where Ultra-lowSulfur Diesel Fuel is not Required or Available
Change engine oil and filter.Every 2,500 mi (4,000 km)or three months (if usinghigh sulfur fuel with morethan 500 ppm sulfur)
Change engine oil and filter.Every 5,000 mi (8,000 km)or six months (if using highsulfur fuel with fewer than500 ppm sulfur)
Exceptions
Axle and Transfer Case Maintenance
Axle(s) and transfer case (4X4 only) fluidchanges or level checks are not requiredunless a leak is suspected or the assemblyhas been submerged in water. During longperiods of trailer towing with outsidetemperatures above 70°F (21°C) or atwide-open throttle for long periods above45 mph (72 km/h), change the rear axlefluid every 30,000 mi (48,000 km) if therear axle is filled with non-synthetic fluid.This interval can be waived and the150,000 mi (240,000 km) service intervalcan continue if the rear axle is filled with75W140 synthetic gear fluid meeting Ford
specification WSL-M2C192-A, part numberXY-75W140-QL, or equivalent. Add frictionmodifier XL-3 (EST-M2C118-A) orequivalent for a complete refill ofTraction-Lok rear axles. See Capacitiesand Specifications (page 520).
Additional Axle Maintenance for DualRear Wheels
Change rear axle fluid every 250,000 mi(400,000 km) under normal drivingconditions on all commercial applications.When operating your vehicle at or nearmaximum gross vehicle weights, changethe rear axle fluid every 60,000 mi(96,000 km). In addition, follow this60,000 mi (96,000 km) schedule whenoperating your vehicle under the specialoperating conditions where noted.
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