2023 FORD SUPER DUTY engine

GENERAL MAINTENANCE
INFORMATION - DIESEL
Why Maintain Your Vehicle?
Carefully following the maintenanceschedule helps protect against major repairexpenses resulting from neglect orinadequate maintenance and may help toincrease the value of your vehicle whenyou sell or trade it. Keep all receipts forcompleted maintenance with your vehicle.
It is important that you have your vehicleserviced at the proper times. Theseintervals serve two purposes: first is tomaintain the reliability of your vehicle andthe second is to keep the cost of owningyour vehicle down.
It is your responsibility to have allscheduled maintenance performed and tomake sure that the materials used meetthe specifications identified in this owner'smanual. See Capacities andSpecifications (page 520).
Failure to perform scheduled maintenanceand regularly inspect your vehicle mayresult in vehicle damage not covered bythe vehicle Warranty.
Why Maintain Your Vehicle at YourDealership?
Our Genuine Replacement Parts
Dealerships stock our parts and ourauthorized branded remanufacturedreplacement parts. These parts meet orexceed our specifications. Parts installedat your dealership carry a nationwide24-month or unlimited mile (kilometer)parts and labor limited warranty.
If you do not use our authorized parts, theymay not meet our specifications and couldaffect emissions compliance.
Protecting Your Investment
Maintenance is an investment that paysdividends in the form of improvedreliability, durability and resale value. Tomaintain the proper performance of yourvehicle and its emission control systems,make sure you have scheduledmaintenance performed at the designatedintervals.
Your vehicle comes with the IntelligentOil-Life Monitor system, a messageappears in the information display at theproper oil change interval. This intervalmay be up to one year or 15,000 mi(24,000 km) for the 6.7L Diesel.
When the oil change message appears inthe information display, it is time for an oilchange. Make sure you perform the oilchange within two weeks or 500 mi(800 km) of the message appearing. Makesure to reset the Intelligent Oil-Life Monitorafter each oil change. See NormalScheduled Maintenance (page 597).
If your information display resetsprematurely or becomes inoperative, youshould perform the oil change interval atsix months or 5,000 mi (8,000 km) fromyour last oil change. Never exceed one yearor 15,000 mi (24,000 km) between oilchange intervals.
You can drive high performance vehiclesin such a way that may lead to higher oilconsumption including extended time athigh engine speeds, high loads, enginebraking, hard cornering maneuvers, trackand off-road usage. Under theseconditions, oil consumption ofapproximately 1 quart per 500 miles (1 literper 800 km) is possible. Check the engineoil level at every refueling and adjust tomaintain proper levels to avoid enginedamage.
It is important to rely upon your dealershipto properly diagnose and repair yourvehicle.
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We strongly recommend only using ourgenuine or our authorized re-manufacturedreplacement parts engineered for yourvehicle.
Additives and Chemicals
We do not recommend using chemicals oradditives not approved by us as part ofyour vehicle’s normal maintenance. Pleaseconsult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is anormal operating characteristic and, byitself, does not necessarily indicate aconcern or that the fluid needs to bechanged. Have discolored fluids that alsoshow signs of overheating or foreignmaterial contamination checkedimmediately.
Make sure to change the vehicle’s oils andfluids at the specified intervals or inconjunction with a repair. Flushing is aviable way to change fluid for many vehiclesub-systems during scheduledmaintenance. It is critical that systems areflushed only with new fluid that is the sameas that required to fill and operate thesystem or using our approved flushingchemical.
Owner Checks and Services
Make sure you perform the following basicmaintenance checks and inspections.
Check Every Month
The air filter restriction gauge.1
The engine oil level.
Function of all interior and the exterior lights.
The tires including the spare for wear and proper pressure.
The windshield washer fluid level.
The fuel and water separator. Drain if necessary or if indicated by the information display.1
The holes and slots in the tail pipe to make sure they are functional and clear of debris.1
1 Diesel vehicles only.
Check Every Six Months
The battery connections. Clean if necessary.
The body and door drain holes for obstructions. Clean if necessary.
The cooling system fluid level and the coolant system strength.
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Check Every Six Months
The door weatherstrips for wear. Lubricate if necessary.
The hinges, latches and outside locks for proper operation. Lubricate if necessary.
The parking brake for proper operation.
The seatbelts and seat latches for wear and function.
Safety warning lamps, brake, ABS, airbag and seatbelt for operation.
The washer spray and wiper operation. Clean or replace blades as necessary.
Multi-Point Inspection
It is important to have the systems on yourvehicle regularly checked. This can helpidentify potential issues and prevent majorproblems. We recommend having thefollowing multi-point inspection performedat every scheduled maintenance intervalto help make sure your vehicle keepsrunning great.
Multi-Point Inspection
Hazard warning system operationAccessory drive belt or belts
Horn operationBattery performance
Radiator, cooler, heater and air conditioninghosesEngine air filter
Suspension components for leaks ordamageExhaust system
Steering and linkageExterior lamps operation
Tires including the spare for wear and
proper pressure2Fluid levels1; fill if necessary
Windshield for cracks, chips or pitsFor oil and fluid leaks
Washer spray and wiper operationHalfshaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer.2If your vehicle has a temporary mobility kit, check the tire sealant expiration Use By dateon the canister. Replace as needed.
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If your instrument cluster display resetsprematurely or becomes inoperative, youshould perform the oil change interval atsix months or 5,000 mi (8,000 km) fromyour last oil change. Never exceed one yearor 10,000 mi (16,000 km) between oilchange intervals.
You can drive your vehicle in such a waythat may lead to higher oil consumptionincluding extended time at high enginespeeds, high loads, engine braking, hardcornering maneuvers, track and off-roadusage. Under these conditions, oilconsumption of approximately 1 quart per500 miles (1 liter per 800 km) is possible.Check the engine oil level at every refuelingand adjust to maintain proper levels toavoid engine damage.
You can also drive your vehicle in such away that dilutes and increases the level ofoil by frequent short trips that do not allowthe engine to get to operating temperature,extended idling and low speed driving forlong periods of time.
It is important to rely upon your dealershipto properly diagnose and repair yourvehicle.
We strongly recommend only using ourgenuine or our authorized re-manufacturedreplacement parts engineered for yourvehicle.
Additives and Chemicals
We do not recommend using chemicals oradditives not approved by us as part ofyour vehicle’s normal maintenance. Pleaseconsult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is anormal operating characteristic and, byitself, does not necessarily indicate aconcern or that the fluid needs to bechanged. Have discolored fluids that alsoshow signs of overheating or foreignmaterial contamination checkedimmediately.
Make sure to change the vehicle’s oils andfluids at the specified intervals or inconjunction with a repair. Flushing is aviable way to change fluid for many vehiclesub-systems during scheduledmaintenance. It is critical that systems areflushed only with new fluid that is the sameas that required to fill and operate thesystem or using our approved flushingchemical.
Owner Checks and Services
Make sure you perform the following basicmaintenance checks and inspections.
Check Every Month
The air filter restriction gauge.1
The engine oil level.
Function of all interior and the exterior lights.
The tires including the spare for wear and proper pressure.
The windshield washer fluid level.
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Check Every Month
The fuel and water separator. Drain if necessary or if indicated by the instrument cluster
display.1
The holes and slots in the tail pipe to make sure they are functional and clear of debris.1
1 Diesel vehicles only.
Check Every Six Months
The battery connections. Clean if necessary.
The body and door drain holes for obstructions. Clean if necessary.
The cooling system fluid level and the coolant system strength.
The door weatherstrips for wear. Lubricate if necessary.
The hinges, latches and outside locks for proper operation. Lubricate if necessary.
The parking brake for proper operation.
The seatbelts and seat latches for wear and function.
Safety warning lamps, brake, ABS, airbag and seatbelt for operation.
The washer spray and wiper operation. Clean or replace blades as necessary.
Multi-Point Inspection
It is important to have the systems on yourvehicle regularly checked. This can helpidentify potential issues and prevent majorproblems. We recommend having thefollowing multi-point inspection performedat every scheduled maintenance intervalto help make sure your vehicle keepsrunning great.
Multi-Point Inspection
Hazard warning system operationAccessory drive belt or belts
Horn operationBattery performance
Radiator, cooler, heater and air conditioninghosesEngine air filter
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Multi-Point Inspection
Suspension components for leaks ordamageExhaust system
Steering and linkageExterior lamps operation
Tires including the spare for wear and
proper pressure2Fluid levels1; fill if necessary
Windshield for cracks, chips or pitsFor oil and fluid leaks
Washer spray and wiper operationHalfshaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer.2If your vehicle has a temporary mobility kit, check the tire sealant expiration Use By dateon the canister. Replace as needed.
Be sure to ask your dealership serviceadvisor or technician about the multi-pointvehicle inspection. It is a comprehensiveway to perform a thorough inspection ofyour vehicle. Your checklist gives youimmediate feedback on the overallcondition of your vehicle.
NORMAL SCHEDULED
MAINTENANCE - DIESEL
Oil Change Reminder
Your vehicle comes with an oil changereminder that determines when you shouldchange the engine oil based on how youuse 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.
When to Expect the Message Prompting You to Change Your Oil
Vehicle Use and Examplemi (km)
Light
Up to 15,000 mi(24,000 km)
No towing.Primarily highway driving.Flat roads.Moderate temperatures.
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When to Expect the Message Prompting You to Change Your Oil
Vehicle Use and Examplemi (km)
Minimal idle time.
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
Less than 7,500 mi(12,000 km)
Moderate to heavy load or towing.Mountainous or off-road conditions.Extended idling, 200-300 hours.Extended hot or cold operation.Maximum load or towing.Extreme hot or cold operation.Use of high sulfur diesel fuel.
Note:Use the appropriate special operating condition for maintenance information whenusing high sulfur diesel fuels, operating your vehicle off-road or in dusty conditions, such asunpaved roads.
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 Display1
Change the engine oil and filter.2
Fuel and water separator. Drain if necessary or if indicated by the instrument clusterdisplay.
Refill the diesel exhaust fluid tank.
Rotate the tires, inspect the tires for wear and measure the tread depth.4
Perform a multi-point inspection, recommended.
Inspect the air filter restriction gauge. Replace the air filter if necessary.3
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
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At Every Oil Change Interval as Indicated by the Instrument Cluster Display1
Inspect the engine and secondary cooling system coolant concentration freeze-pointprotection, level and the hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints. Lubricate any grease fittings. Four-wheel drivevehicles.
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and the U-joints. Lubricate any grease fittings.
1 Do not exceed one year/15,000 mi (24,000 km) or 450 engine hours between serviceintervals.2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.3 Reset the engine air filter information monitor after you replace the air filter.4 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 items1
Replace the cabin air filter.Every 20,000 mi(32,000 km)
Replace the engine air filter.2
Every 30,000 mi(48,000 km)
Replace the engine-mounted and frame-mounted fuel filters.Inspect the engine and secondary cooling system coolantconcentration freeze-point protection, additive corrosioninhibitor strength, coolant level, and hoses. Add coolantadditive if necessary.
Replace the engine air inlet foam filter.Every 50,000 mi(80,467 km)
Replace the front wheel bearing grease and grease seal ifusing non-sealed bearings. Two-wheel drive vehicles.Every 60,000 mi(96,000 km)
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance