Ford part number /
Ford specification
Ford part name or
equivalent
Capacity
Item
WSH-M1C231-B
3.53 fl oz (104.39
ml)
A/C Refrigerant
Compressor Oil 9
(Diesel engines)
1 Add 8 oz. (236 ml) of Additive Friction Modifier XL-3 or equivalent meeting Ford
Specification EST-M2C118– A for complete refill of limited slip Ford axles. Ford design
rear axles contain a synthetic lubricant that does not require changing unless the axle
has been submerged in water.
2 Add the coolant type originally equipped in your vehicle.
3 Your engine has been designed to use Motorcraft engine oils or equivalent oils that meet
Ford specifications. It is also acceptable to use an engine oil of recommended viscosity
grade that meets API SN requirements and displays the API Certification Mark for gasoline
engines
Note: Do not use API category oils labeled as SN, SM, SL or lower category unless the label
also displays the API certification mark. These oils do not meet the requirements for your
engine and emission system.
4 Do not use supplemental engine oil additives in your engine. They are unnecessary and
could lead to engine damage that is not covered by your Ford warranty.
5 Make sure the correct automatic transmission fluid is used. Transmission fluid
requirements are indicated on the dipstick blade or the dipstick handle. Check the container
to verify the fluid you are adding is of the correct type. Refer to your scheduled maintenance
information to determine the correct service interval.
Note: Automatic transmissions that require MERCON LV should only use MERCON LV fluid.
Use of any fluid other than the recommended fluid may cause transmission damage.
6 Indicates only approximate dry-fill capacity. Some applications may vary based on cooler
size and if equipped with an in-tank cooler. The amount of transmission fluid and fluid
level should be set by the indication on the dipstick’ s normal operating range.
7 See Transmission (page 140). See Checking automatic transmission fluid in this chapter
for the correct dipstick type. Fill to the proper capacity according to dipstick Type A.
8 See Transmission (page 140). See Checking automatic transmission fluid in this chapter
for the correct dipstick type. Fill to the proper capacity according to dipstick Type B.
9 WARNING
The A/C refrigerant system contains refrigerant R-134a under high pressure. Opening
the A/C refrigerant system can cause personal injury. A/C refrigerant system is to
be serviced only by qualified personnel.
299
Super Duty (TFA) Capacities and Specifications
