Phillips 66® Type F ATF is a specialized, non-friction modified automatic transmission fluid specifically engineered for older Ford Motor Company vehicles and select industrial applications. Unlike modern fluids that prioritize "smooth" or "slippery" shifting through friction modifiers, Type F is designed to provide the high static friction required for the rapid, positive clutch engagement characteristic of vintage Ford gearboxes. This formula is built on high-quality base stocks to ensure thermal stability and resistance to oxidation, protecting legacy internal components that operate under high-stress conditions without the benefit of modern electronic pressure controls.