G-Box Expert ATF DX III is a semi-synthetic gear oil designed for use in automatic transmissions and power steering of cars and trucks where Dexron IIIH and lower fluids are required. Thanks to the inclusion of a synthetic base stock, the oil has high resistance to oxidation, provides stable operation of transmissions in harsh climatic conditions and has an extended service life compared to mineral-based oils. G-Box Expert ATF DX III ensures optimal operation of friction packs, gears, torque converter, transmission unit valves and power steering mechanisms throughout the entire oil change interval.