BG Syncro Shift II Full Synthetic Gear Lubricant is specially formulated for manual transmissions, transaxles, Haldex units, and transfer cases. It is a full synthetic API GL-4 gear lubricant blended to SAE 75W-80 viscosity to provide unmatched film strength and wear protection. It provides exceptional resistance to mechanical shearing, has excellent low-temperature fluidity, and is safe for all steel, brass, and copper alloys. BG Syncro Shift II may be effectively used in all vehicles where engine oil, ATF, or GL-4 gear oil is specified as “service fill” for manual transmissions.