Ford Genuine Fluid XL-3 Friction Modifier Additive - 4 oz.
- For use on certain limited-slip differentials to reduce chatter and hypoid gear noise levels
- Use according to owner guide recommendations
- Formulated for automotive use
- Added to lubricants to reduce the surface friction of the lubricated parts
- Required When Doing Any Rear Differential Service To Vehicles Equipped With A Limited Slip