API Service Classification GL-5 gear oil that is suitable for standard and limited slip differentials in passenger cars and trucks. Protects against deposit formation, corrosion, rust and wear. Bulk 20L size for multiple oil changes - API Service Classification GL-5 gear oil that is suitable for standard and limited slip differentials in passenger cars and trucks - Protects against deposit formation, corrosion, rust and wear - Bulk 20L size for multiple oil changes The Valvoline Gear Oil HP Gear Oil 85W-140 20L is an API Service Classification GL-5 gear oil that is suitable for use in standard and limited slip differentials. With its superior gear lubrication properties, increased thermal oxidation stability and anti-corrosion additive technology, the Valvoline Gear Oil HP Gear Oil 80W-90 20L is ideal for passenger vehicles and trucks with automotive manual transmissions, hypoid differentials and spiral bevel rear axles/transaxles where an API GL-5 gear oil is specified. Features - Contains exceelent extreme pressure performance additives - Suitable for use in Limited Slip Differentials - Protects against the main causes of gear failure: deposits, corrosion, rust and wear - Suitable for passenger car, 4WD, SUV, light and heavy commercial applications where API GL-5 specification is recommended