Engine Oil, Lubricating Oil, Grease manufacturer / supplier in China, offering Gl-5 85W-140 Extreme Heat Gear Oil for Desert Truck Fleets, 75W-90 Full Synthetic Gl-5 Gear Oil5% Fuel Efficiency Boost with Low Friction, API Gl-5 80W-90 Heavy Duty Gear Oil Anti-Wear for Mining Machinery and so on.