Extreme Duty Marine ATF

Lucas Oil Products, Inc.

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
  • 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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Last night I drained my 5 speed transmission and filled it with the same gear oil, then topped it off with your transmission Fix. Good stuff!

Hey there,

I'm Jim Doll, just another weekend monkey wrench. I recently purchased a 1996 Toyota T-100, 4WD, 5 speed manual, with almost 300,000 miles on it. Two weeks ago I drained the rear differential (full of glitter) and refilled it with Lucas 75-90 synthetic oil and and dab of oil stabilizer. There wasn't any problem with the differential before this, I just knew that it needed to be done as it was likely never done at regular intervals. I'm already noticing the power gains as well as quieter long distance driving! Then I did the same for my front differential.

Last night I drained my 5 speed transmission and filled it with the same gear oil, then topped it off with your transmission Fix. Good stuff! My shifting is way smoother, and doesn't grind EVER! I can feel the power that I've gianed back. I'm so stoked that your products were able to help out so much.

I've always used products to keep my ride rolling. I've actually never had these kind of results with any other products on the market! Don't get me wrong other stuff works but I've had the best successes with every single one of your products.

Earlier this year my girlfriend and I drove to Yosemite National Park. Before we left our home I put a bottle of your fuel Treatment in the tank and filled up. We drove for almost 5 continuous hours. I noticed the crazy gains in economy and slightly better throttle response from your product right away! It was awesome!

I'm a huge fan of your products and will continue to keep using them. I'm telling all my friends about my successes from using your oils and will continue to promote these products with my customers.

Thanks for your awesome products! Keep up the great work!

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