Multipurpose automatic transmission fluid (ATF), specially designed in accordance with the revised requirements of GM DEXRON®-III (H) specification for four and five speed automatic transmissions. The product is manufactured using specially treated Group III base stocks with high viscosity index and an additive package, which provides protection against wear and optimal friction performance for smooth gear shifts. Increased stability to physical deterioration and outstanding stability to oxidation allow the retention of initial performance in extended service intervals.