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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Nicholas Denson uses Lucas Heavy Duty Oil Stabilizer We've used it in all of our vehicles.

I've owned a lot of different vehicle over the years. I also put on a ton of miles over terrain that is far from ideal. I've used a varying assortment of Lucas products in all of them with great results. My current truck is a 2006 Isuzu Cab Forward, and I've already started using Lucas at the first oil change. The reason, the cars/trucks I've already owned:

1. 1975 and 1977 Chevy Corvette (V8)- 150,000 and 200,000 miles respectively and still both are purring like kittens. I've since sold both, but know the owners and keep in touch. They still use Lucas additives.

2 1989 Honda Accord (IL4)- 345,000 and now on its third owner now, still running great.

3. 1980 Chevy S-10 Blazer (V6) - 255,000 and still running great when the frame rusted out.

4. 1985 Ford Ranger Pick-up 4x4 (V6)- 330,000 miles and still running with a new owner.

5 1985 Ford F-250 Dually, Diesel (6.9L V8)- I bought it with 350,000 miles on it (original engine 6.9L), I put anouther 300,000 on it, and now I've given it to my father for hauling a boat trailer.

6. 2006 Isuzu NPR (5.2L 4cyl Turbo diesel), 14,000 miles on it, and alreay using the additives. They told me at the dealer these trucks routinely go a million miles, I'm aiming for 2 million.

I all the vehicle that I've ever used Lucas additives, the only reason that any of them every saw a junk yard was either for frame damage, or sheet metal damage. I've never blown an engine, dropped a tranny, or had any problems other than routine stuff like the original fuel pump letting go at 600,000 miles.

Like I said, we put a lot of miles on for work, and I've kept my business running (pardon the pun) like a well oil machine, because I've never had to worry about being down for engine or transmission work. I highly recommend these products and will continue to use them as long as I have a vehicle.

We learned about Lucas at an automotive convention where a rep showed us a demonstration. We didn't believe it would work, or that it'd be worth the money, boy were we wrong. Keep up the great work.

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