Econoline E550 V10-6.8L VIN S (2003)
Fluid - Differential: Fluid Type Specifications
Differential Fluid Type
Ford 8.8/9.75 inch conventional/Trac-Lok Axles
Type ............................................................................................................................................................. SAE 75W-90 Fuel Efficient Synthetic lubricant
Ford Traction-Lok axles require 4 oz (118 ml) of Additive Friction Modifier XL-7 or equivalent meeting Ford specification EST-M2C118-A.
