Universal transfer case fluid is a multi-vehicle synthetic lubricant designed to replace specific oem fluids, such as ford xl-12 and gm auto trak ii, or standard atf. it protects against wear, oxidation, and extreme temperatures, streamlining maintenance for diverse 4wd and awd systems.top multi-vehicle formulas include:valvoline multi-vehicle transfer case fluid: engineered to substitute dex/merc, atf+4, auto trak ii, and ford xl-12 fluids in most ford, gm, dodge, and jeep vehicles.petra universal synthetic transfer case fluid: a premium synthetic formulation designed to meet the demands of various oem systems.