Ravenol J1C1001 SAE 75W-90 Gear Oil - TSG Semi-Synthetic API GL-4 Spec (1 Liter) High performance German-made gear oil for manual transmissions and differentials requiring specification API GL-4 Meets and exceeds VW/Audi gear oil specification 501 50 (G50) Meets and exceeds Ford ESD M2C-175 and GM B 040 104 3 gear oil specifications Meets API GL-4 and PSA Standard B 71 2315 Provides outstanding wear protection and lubrication in highly stressed conditions along with good shear stability