Extreme Duty Marine ATF

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Extreme Duty Marine ATF

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
  • Designed for use in off shore boat racing transmissions
  • 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

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* Size:


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


Product Spec Sheet Technical Data Sheet - English
Safety Data Sheet Safety Data Sheet - English
Safety Data Sheet Safety Data Sheet - French
Safety Data Sheet Safety Data Sheet - German
Safety Data Sheet Safety Data Sheet - Netherlands (Dutch)
Safety Data Sheet Safety Data Sheet - Portuguese
Safety Data Sheet Safety Data Sheet - Spanish
Safety Data Sheet Safety Data Sheet - Swedish

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Jeff Humpert uses Lucas Fuel Treatment in 1998 GMC Jimmy 4X4

I bought some of the Lucas fuel treatment after using the Transmission Fix and having good results. My Jimmy had been losing fuel economy and my onboard computer showed I was averaging less than 17.5 MPG and the fuel gauge was also showing that. I ran 2 bottles in back to back tank fulls and at first I didnt think it was working then amazingly one day I noticed the fuel gauge was staying fuller so I checked the computer and it was showing that I went from 17.3 MPG to starting to show aroound 17.8 and continues to climb. When I last checked it this morning I am now showing I am averaging 19.8 MPG and the fuel gauge is definetely showing the increased fuel economy.

I have never gotten more then 18.5 MPG and I have had the Jimmy for 2 years now. Lucas Products are the best products I have used and I am sold and will continue to purchase your products anytime I need something that you have a product available for the application I am needing.

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