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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Mike Bishop uses Lucas Transmission Fix

I have a 1994 Ford Ranger with a V6 4.0 Liter engine. My transmission was knocking hard when I went up to 55 mph, then let off the gas, and then gave it the gas again. This was usually in heavy traffic. I figured it was used up, since the truck had 175000 miles on it. I tried Slick 50 for about 10000 miles and had the same problem with no noticeable change. Two transmission shops told me I needed a new or rebuilt transmission, the price was going to be 2500 for new + labor, and 600 + labor for a rebuilt. I decided it was worth trying Lucas before I changed it because one of my friends told me about it. Within 50 miles it was acting much better, and at @ 100 miles it was shifting like new. I figured it was a temporary fix, and might get me to 200000 miles. I now have greater than 282000 miles on the truck, and I use Lucas products in all my vehicles, and tell everyone what great products they are. I'm now shooting for 300000 miles plus!

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