cooling FORD SUPER DUTY 2023 Owner's Manual

COOLANT
CHECKING THE COOLANT LEVEL
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
WARNING: To reduce the risk ofpersonal injury, make sure the engine iscool before unscrewing the coolantpressure relief cap. The cooling systemis under pressure. Steam and hot liquidcan come out forcefully when you loosenthe cap slightly.
When the engine is cold, check theconcentration and level of the coolant atthe intervals listed in the scheduledmaintenance information. See ScheduledMaintenance (page 591).
Note:Make sure that the coolant level isbetween the MIN and the MAX marks onthe coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.This is normal.
Maintain coolant concentration within48% to 50%, which equates to a freezepoint between -29°F (-34°C) and -35°F(-37°C). Coolant concentration should bechecked using a refractometer. We do notrecommend the use of hydrometers orcoolant test strips for measuring coolantconcentration.
ADDING COOLANT
WARNING: Do not add coolantwhen the vehicle is on or the coolingsystem is hot. Failure to follow thisinstruction could result in personal injury.
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
WARNING: Do not allow the fluidto touch your skin or eyes. If thishappens, rinse the affected areasimmediately with plenty of water andcontact your physician.
WARNING: Do not put coolant inthe windshield washer reservoir. Ifsprayed on the windshield, coolant couldmake it difficult to see through thewindshield.
WARNING: Do not add coolantfurther than the MAX mark.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Note:Automotive fluids are notinterchangeable.
450
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenance

It is very important to use predilutedcoolant approved to the correctspecification in order to avoid plugging thesmall passageways in the engine coolingsystem. See Capacities andSpecifications (page 520). Do not mixdifferent colors or types of coolant in yourvehicle. Mixing of engine coolants or usingan incorrect coolant may harm the engineor cooling system components and maynot be covered by the vehicle Warranty.
Note:If prediluted coolant is not available,use the approved concentrated coolantdiluting it to 50/50 with deionised ordistilled water. See Capacities andSpecifications (page 520). Using water thathas not been deionised may contribute todeposit formation, corrosion and pluggingof the small cooling system passageways.
Note: Coolants marketed for all makes andmodels may not be approved to ourspecifications and may cause damage tothe cooling system. Resulting componentdamage may not be covered by the vehicleWarranty.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
To top up the coolant level do thefollowing:
1.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2.Add prediluted coolant approved tothe correct specification. SeeCapacities and Specifications (page520).
3.Add enough prediluted coolant toreach the correct level.
4.Replace the coolant reservoir cap. Turnthe cap clockwise until it contacts thehard stop.
5.Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, add enoughprediluted engine coolant to bring thecoolant level to the correct level.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have yourvehicle checked as soon as possible.Operating an engine with a low level ofcoolant can result in engine overheatingand possible engine damage.
In case of emergency, you can add a largeamount of water without engine coolantin order to reach a vehicle service location.
Water alone, without engine coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
Alcohol and other liquids can cause enginedamage from overheating or freezing.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection ofthe coolant.
CHANGING THE COOLANT
For coolant change, see your authorizeddealer.
Changing the coolant is necessary atspecific mileage intervals listed in thescheduled maintenance information. SeeScheduled Maintenance (page 591).
451
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenance

MANAGING THE COOLANTTEMPERATURE
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a longor steep grade in high ambienttemperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and thevehicle may not be able to acceleratewith full power until the coolanttemperature reduces.
WARNING: If you continue to driveyour vehicle when the engine isoverheating, the engine could stopwithout warning. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle.
You may notice a reduction in vehiclespeed caused by reduced engine power inorder to manage the engine coolanttemperature. Your vehicle may enter thismode if certain high-temperature andhigh-load conditions take place. Theamount of speed reduction depends onvehicle loading, grade and outsidetemperature. If this occurs, there is noneed to stop your vehicle. You cancontinue to drive. See Fail-Safe Cooling(page 425).
The air conditioning may automaticallyturn on and off during severe operatingconditions to protect the engine fromoverheating. When the coolanttemperature decreases to the normaloperating temperature, the air conditioningturns on.
If the coolant temperature gauge movesfully into the red zone, or if the coolanttemperature warning or service enginesoon messages appear in your informationdisplay, do the following:
1.Stop your vehicle as soon as it is safeto do so. Fully apply the parking brake,shift into park (P) or neutral (N).
2.Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop afterseveral minutes, follow the remainingsteps.
3.Switch the engine off and wait for it tocool. Check the coolant level.
4.If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5.If the coolant level is normal, restartthe engine and continue.
COOLANT – WARNING LAMPS
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone.
A warning lamp illuminates anda message may appear in theinformation display.
452
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE103308 E67028

Note:If you use your vehicle regularly abovethe altitude of 5,000 ft (1,524 m) and underthe temperature of -4.0°F (-20°C), it isrecommended to use the alternative engineoil.
COOLING SYSTEM CAPACITY
AND SPECIFICATION - 6.7L
DIESEL
Use coolant that meets the definedspecification.
If you do not use coolant that meets thedefined specification, it could result in:
•Component damage that your vehiclewarranty does not cover.
•Reduced vehicle performance.
Note:An engine block heater isrecommended at temperatures below-9°F(-23°C).
Capacities
QuantityVariant
31.7 qt (30 L)Primary cooling system.
33.3 qt (31.5 L)Primary cooling system with auxiliary radi-ator.
8.2 qt (7.8 L)Secondary cooling system with ureainjector cooling.
10.0 qt (9.5 L)Secondary cooling system with ureainjector cooling and cooled compressor.
532
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCapacities and SpecificationsE240523

Materials
SpecificationName
WSS-M97B57-A2Motorcraft® Yellow Prediluted Antifreeze/Coolant(U.S.)Motorcraft® Yellow Prediluted Antifreeze/Coolant/ Antigel/liquide de refroidissement prédilué jauneMotorcraft®(Canada)VC-13DL-G(U.S.)CVC-13DL-G(Canada)
COOLING SYSTEM CAPACITY
AND SPECIFICATION - 6.8L,
GASOLINE
Use coolant that meets the definedspecification.
If you do not use coolant that meets thedefined specification, it could result in:
•Component damage that your vehiclewarranty does not cover.
•Reduced vehicle performance.
Capacities
QuantityVariant
22.5 qt (21.3 L)All.
Materials
SpecificationName
WSS-M97B57-A2Motorcraft® Yellow Prediluted Antifreeze/Coolant(U.S.)Motorcraft® Yellow Prediluted Antifreeze/Coolant/ Antigel/liquide de refroidissement prédilué jauneMotorcraft®(Canada)VC-13DL-G(U.S.)CVC-13DL-G(Canada)
533
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCapacities and Specifications

COOLING SYSTEM CAPACITY
AND SPECIFICATION - 7.3L,
GASOLINE
Use coolant that meets the definedspecification.
If you do not use coolant that meets thedefined specification, it could result in:
•Component damage that your vehiclewarranty does not cover.
•Reduced vehicle performance.
Capacities
QuantityVariant
22.5 qt (21.3 L)All.
Materials
SpecificationName
WSS-M97B57-A2Motorcraft® Yellow Prediluted Antifreeze/Coolant(U.S.)Motorcraft® Yellow Prediluted Antifreeze/Coolant/ Antigel/liquide de refroidissement prédilué jauneMotorcraft®(Canada)VC-13DL-G(U.S.)CVC-13DL-G(Canada)
FUEL TANK CAPACITY - DIESEL
Capacities
QuantityVariant
29.0 gal (109.8 L)Complete vehicle-142 inch and 148 inchwheelbase, middle location.
34.0 gal (128.7 L)Complete vehicle-160 inch and 164 inchwheelbase, middle location.
48.0 gal (181.7 L)Complete vehicle-176 inch wheelbase,middle location.
26.5 gal (100.3 L)Incomplete vehicle, middle location.
40.0 gal (151.4 L)Incomplete vehicle, aft- axle -location.
66.5 gal (251.7 L)Incomplete vehicle, middle and aft- axle -locations.
534
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCapacities and Specifications

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.
592
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance

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
596
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance

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)
599
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance

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.
600
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance