Synthetic SAE 75W-90 M8 Marine Gear Oil

Lucas Oil Products, Inc.

Marine Gear Oil Synthetic SAE 75W-90 M8

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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


  • #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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John Wyatt 18.5 MPG in his 1990 Lincoln Town Car

I have a 1990 Lincoln Town Car and got water in the gas. I tried another fuel treatment and I guess it got the water out but my mileage was down to 16.4 mpg by the dash computer.

I tried your 5.25 ounce fuel treatment on a half tank of gas and my idle smoothed up and mileage went to 18.5 mpg. After a second bottle, it is now up to 18.8-19.0 depending on how much in town driving I do which is good for a large body car with a 5.0 liter in it.

I,ll be using it from now on and my next oil change I will add the synthetic oil stabilizer.

Thanks Lucas for such great products that really do what they claim.
John Wyatt

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