Extreme Duty Marine ATF

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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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Eric Gunkel uses Lucas Transmission Fix in 1983 Chevy k5 Blazer 6.2l diesel

I had a leaky front seal on my tranny so I tried the cheap stuff and it didn’t work so I talked to a friend and was about ready to tear out the tranny and replace the seal. My friend told me about Lucas. So I bought some and put it in and to my surprise it worked and it shifts nice too. Thanks Lucas I’m a believer.

Eric Gunkel

Ottertail, MN

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