A reader asks: Do you carry an ATF that meets the DEXRON HP spec? I’m having trouble finding a transmission fluid that meets that specification.

AMSOIL Signature Series Fuel-Efficient Synthetic ATF


Our answer: Yes we sure do. AMSOIL Signature Series Fuel Efficient Synthetic ATF is a high-quality upgrade over AC Delco DEXRON HP. This product also covers the DEXRON VI spec. DEXRON HP ATF is specified for the Hydra-Matic 8L90 eight-speed automatic transmission. The HL90 unit is found in late-model, high-performance GMC, Cadillac and Chevrolet cars, trucks and SUVs.

We can sell the world-class AMSOIL Signature Series Fuel-Efficient Synthetic Automatic Transmission Fluid at wholesale prices and ship it right to your door from warehouses in Canada and the United States. Our wholesale prices smoke the prices of AC Delco Dexron HP ATF found at GM dealers. Contact us using the form on this page or call us at 1-800-748-5781.

AMSOIL Signature Series Fuel-Efficient Synthetic ATF Features

  • High-tech wear control
  • Smooth shifting
  • Optimized fuel economy
  • Outstanding cold weather performance
  • High resistance to extreme heat and heavy loads
  • Prevents transmission shudder
  • Outstanding prevention of varnish and deposits