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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Doug Roeder uses Lucas Fuel Treatment

I have a GMC truck with a Vortec engine that is known for having clogged injectors. I had used several different cleaners before I tried your product. When I added your fuel treatment, the results were almost immediate. I began adding it at every fill-up to keep from having injector problems, and it was very effective. I recently pulled the engine to replace a leaking intake manifold gasket and other leaking seals. To my total amazement, when I pulled the intake manifold and took a look at the intake passages and valves, there was NOTHING! Not a speck of varnish or carbon on the valves or passages. Just gray metal intake valves and shiny aluminum on the manifold! The valves looked like NEW! I'd never seen clean intake valves on any engine with 170000 miles before. I'm sold. I'll keep using this product in all my vehicles.





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