Page 150 of 507

Fuel Filler Cap
WARNINGS
The fuel system may be underpressure. If you hear a hissing soundnear the fuel filler door, do not refueluntil the sound stops. Otherwise, fuel mayspray out, which could cause seriouspersonal injury.
If you do not use the proper fuel fillercap, excessive pressure or vacuumin the fuel tank may damage the fuelsystem or cause the fuel cap to disengagein a collision, which may result in possiblepersonal injury.
Note:If you must replace the fuel filler cap,replace it with a fuel filler cap that isdesigned for your vehicle. The customerwarranty may be void for any damage to thefuel tank or fuel system if the correctgenuine Ford, Motorcraft or other certifiedfuel filler cap is not used.
Your fuel tank filler cap has an indexeddesign with a 1/4th turn on and off feature.When fueling your vehicle:
1. Put your vehicle in park (P).
2. Switch the engine off.
3. Carefully turn the filler capcounterclockwise until it spins off.
4. Pull to remove the cap from the fuelfiller pipe.
5.To install the cap, align the tabs on thecap with the notches on the filler pipe.
6. Turn the filler cap clockwise 1/4 of aturn clockwise until it clicks at leastonce.
If the Check Fuel Cap light or a Check FuelCap message appears in the instrumentcluster and stays on after you start theengine, you may not have installed the fuelfiller properly.
If the fuel cap light remains on, at the nextopportunity, safely pull off of the road,remove the fuel filler cap, align the capproperly and reinstall it. The check fuel caplight or Check fuel cap message may notreset immediately. It may take severaldriving cycles for the indicators to turn off.A driving cycle consists of an enginestart-up (after four or more hours with theengine off) followed by normal city andhighway driving.
FUEL CONSUMPTION
Empty reserve is the amount of fuelremaining in the tank after the fuel gaugeindicates empty. The amount of usablefuel in the empty reserve varies and shouldnot be relied upon to increase driving range.
•The usable capacity of the fuel tank isthe amount of fuel that can be addedinto the tank after the gauge indicatesempty
•The advertised capacity is the total fueltank size. See Capacities andSpecifications (page 303). It is thecombined usable capacity plus theempty reserve.
•Due to the empty reserve, you may notbe able to refuel the full amount of theadvertised capacity of the fuel tankeven when the fuel gauge reads empty.
Filling the Tank
For consistent results when filling the fueltank:
•Turn the ignition off before fueling; aninaccurate reading results if the engineis left running.
•Use the same fill rate(low-medium-high) each time the tankis filled.
•Allow no more than two automaticclick-offs when filling.
147
Super Duty (TFA) Canada/United States of America, enUSA, First Printing
Fuel and Refueling
Page 310 of 507

CAPACITIES AND SPECIFICATIONS - 6.2L V8
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant R-134a under highpressure. Opening the air conditioning refrigerant system can cause personal injury.Have the air conditioning refrigerant system serviced only by qualified personnel.
CapacityItem
7.0 qt (6.6 L)Engine oil
21.3 qt (20.2 L)Engine coolant
Between MIN and MAX on brake fluidreservoirBrake fluid
3.0 qt (2.8 L)Front axle
3.5 qt (3.3 L)Rear axle- F-250/350 (10.50 inch axle)
4.2 qt (4 L)Rear axle- F-350 (Dana M80)
7.0 qt (6.6 L)Rear axle- F-450/550 (Dana S110/S130)
16.7 qt (15.8 L)*Automatic transmission fluid
2.0 qt (1.9 L)Transfer case fluid
Fill as requiredWindshield washer fluid
28 gal (106 L)Fuel tank (incomplete vehicle, steel tank,middle location)
35 gal (132 L)Fuel tank (pickup)
40 gal (151 L)Fuel tank (incomplete vehicle , steel tank,aft axle location)
29 oz (0.82 kg)A/C refrigerant
4.2 fl oz (125.09 ml)A/C refrigerant compressor oil
Refer to the diesel supplementFor diesel fluid capacities and specifica-tions
*Approximate dry fill capacity. Actual amount may vary during fluid changes.
307
Super Duty (TFA) Canada/United States of America, enUSA, First Printing
Capacities and Specifications
Page 315 of 507

CapacityItem
3.5 qt (3.3 L)Rear axle- F-250/350 (10.50 inch axle)
4.2 qt (4 L)Rear axle- F-350 (Dana M80)
7.0 qt (6.6 L)Rear axle- F-450/550 (Dana S110/S130)
17.5 qt (16.6 L)*Automatic transmission fluid
2.0 qt (1.9 L)Transfer case fluid
Fill as requiredWindshield washer fluid
28 gal (106 L)Fuel tank (incomplete vehicle, steel tank,middle location)
35 gal (132 L)Fuel tank (pickup)
40 gal (151 L)Fuel tank (incomplete vehicle , steel tank,aft axle location)
29 oz (0.82 kg)A/C refrigerant
4.2 fl oz (125.09 ml)A/C refrigerant compressor oil
Refer to the diesel supplementFor diesel fluid capacities and specifica-tions
*Approximate dry fill capacity. Actual amount may vary during fluid changes.
Specifications
Materials
SpecificationName
WSS-M2C946-ARecommended motor oil (U.S.):Motorcraft SAE 5W-30 Premium Synthetic Blend MotorOilXO-5W30-QSP
WSS-M2C946-ARecommended motor oil (Canada):Motorcraft SAE 5W-30 Super Premium Motor OilCXO-5W30-LSP12
WSS-M2C946-ARecommended motor oil (Mexico):Motorcraft SAE 5W-30 Synthetic Motor OilMXO-5W30-QSP
WSS-M2C946-AOptional motor oil (U.S. and Mexico):Motorcraft SAE 5W-30 Full Synthetic Motor Oil
312
Super Duty (TFA) Canada/United States of America, enUSA, First Printing
Capacities and Specifications