Synthetic SAE 75W-90 M8 Marine Gear Oil

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Synthetic SAE 75W-90 M8 Marine Gear Oil

Lucas M8 Synthetic SAE 75W-90 Marine Gear Oil is a pure synthetic, non foaming, super slick, long lasting lubricant designed especially for marine applications. Originally designed for high powered off shore racing boats, M8 Marine Gear Oil contains seal conditioners and an exclusive blend of synthetic additives that protect from rust and wear caused by both fresh water and salt water during long periods of storage.

Excellent for use in any heavy duty / high performance stern drives, v-drives, gear boxes, wheel bearings and superchargers.

Key Benefits

  • Fortified with anti-foaming agents to prevent cavitation at high RPM's
  • Safely blends with all other known gear oils and additives
  • Protects against rust and moisture during long periods of storage
  • Provides rust and corrosion protection in both fresh water and salt water environments
  • Effective Water Resistance
  • Long Lasting
  • Resist Extreme Pressure
  • Extreme Friction Reducer


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For Sales enquiries Freephone: 0808 100 3259 or find your nearest retailer



  • #10652 - 1 Quart (Case of 12) - 25 lbs
  • #10664 - 5 Gallon Pail (1 Pail) - 40 lbs



Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet

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Bill Kuhlmann uses Lucas 70WT Plus Racing Oil for Pro Mod Supercharger

Dear Mr. Lucas

Thanks for the opportunity of testing your racing oil in my supercharged pro mod engine.

After a week long dyno test session at the Fontana facility in Gardena, CA I have confirmed results to report. Your 70 weight racing oil not only did a better job of protecting my engine, but in back to back tests made more power than any of your competitors 50 weight that we tested. We actually made our highest power numbers with your thicker viscocity oil. I was very surprised and pleased.

With all of the false claims about what motor oils can do, you have a great product that actually does what you said it would do.




Bill Kuhlmann
Bill Kuhlmann Racing

Wentzville, Missouri

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