Castrol 30217 AP 80W-90 Gear Lubricant - 35 lb. Excellent load carrying ability Anti-rust and anti-corrosion qualities and anti-foam protection Oxidation stability Wear resistance Meets or exceeds all truck or passenger car manufacturers' warranty requirements for vehicles, transmissions, or axles where a GL-5 and/or MIL-L-2105E, SAE J2360 approved 80W-9 gear oil is specified