G-Box GL-4/GL-5 75W-90 is a synthetic transmission oil. Description. Synthetic transmission oil based in the deep refined base oils and a special additive package which provide high performance characteristics in a wide temperature range. It is intended for use in manual transmissions of passenger cars and trucks operating in severe conditions. Benefits: it has exceptional low-temperature properties (it ensures transmission operation as low as -40°C); it ensures extended service life and reliable transmission operation thanks to the high quality basis. Its high thermal stability ensures an extended oil change interval. Optimum frictional properties guarantee smooth gear shifting and vibration-free operation. High anti-wear and anti-corrosive properties significantly extend transmission service life. Application: in manual transmissions, gearboxes of passenger cars and trucks, transfer cases of four-wheel drive vehicles, in drive axles of autos with hypoid gears when operating at high-speed and low-speed impact loads, also in highly loaded manual transmissions. It is recommended for use in the manual transmissions where API GL-5 or API GL-4 oils are required. Approvals and specifications: MB 235.8, ZF TE-ML 02B, 05B, 07A, 08, 12B, 16F, 17B, 19C, 21B, Scania STO 1:0, MAN M3343 Type S, ArvinMeritor 076-N