Phillips 66® Super ATF is a high-quality automatic transmission fluid recommended for use in all domestic and import vehicles no longer under warranty where the OEM previously specified a GM DEXRON®-III H or Ford MERCON® fluid. This versatile lubricant is formulated to provide reliable performance in older planetary gearsets, offering a cost-effective alternative to synthetic-blend fluids while maintaining the strict frictional requirements of legacy transmissions. Its robust formulation resists oxidation and thermal breakdown, ensuring that high-hour gearboxes continue to shift smoothly and remain free of performance-robbing sludge and varnish.