DHO API GL-5 Cars & Vehicles Gear Oil quality level: API GL-5 viscosity level: 80W ... , chlorine-free and zinc free formula, reduces pollution and gear system’s wear and corrosion; unique VISCOTM technology, effectively ... long Distance high speed and poor road condition;Suitable for gear box system of engineering machinery;Suitable for Volvo, Man, ... for engine. DHO API GL-5 Cars & Vehicles Gear Oil 4L