Extreme Duty Marine ATF

Lucas Oil Products, Inc.

Extreme Duty Marine ATF

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Lucas Extreme Duty Marine ATF is a blend of specific synthetic base oils and a special Lucas additive package designed to create a high friction fluid that allows shifting clutches in the transmission to lock up and engage quickly. A faster shift means less clutch slippage, therefore, less heat and wear in the transmission.

Fortified with special synthetic additives that coat moving parts to protect against rust and moisture during storage.

Key Benefits

  • Pure Synthetic
  • High performance, high torque, non-electronic shift transmissions. Ensures firm shifting which improves performance and prolongs clutch-life
  • An easy flowing fluid with superior heat transfer capabilities
  • Expect excellent performance cold or hot
  • Contains special anti-foaming agents
  • A stable long life fluid - perfect for irregular maintenance
  • Safely blends with other synthetic & non-synthetic fluids


  • #10651 - 1 Quart (Case of 6) - 13 lbs


Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet

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H.B. Siegel uses Lucas Power Steering Stop Leak in 1987 Toyota Corolla

I recently ran into problems with my 1987 Toyota Corolla’s power steering. It seemed the rack was binding up and the steering was becoming stiff. With over 100 thousand miles I was about to scrap the vehicle when my parts store recommended your Power Steering Stop Leak. I had to admit I was skeptical as I have never had any success with additives. It worked immediately! Thanks for a great product. My steering is now perfect.

H.B. Siegel

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