System Specifications

POWER TRANSFER UNIT FLUID
Motorcraft SAE 75W-140 High Performance Rear Axle Lubricant

Ford P/N XY-75W140-QL
Ford Specification WSL-M2C192-A

NOTE: The Power Transfer Unit is lubricated for life with synthetic lube. Lubricant levels are not to be checked or changed unless a leak is suspected or repair required. Replace Power Transfer Unit lubricant with specified synthetic lubricant anytime the unit is submerged in water.