Synthetic SAE 75W-90 M8 Marine Gear Oil

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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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Randy Caley Gets 36 MPG in a 99 Ford Contour with Lucas Fuel Treatment

I have 1999 Ford Contour.  It just rolled over to 255,000 miles. I just got 35.7 mpg on my last tank. I have had up to 36.7 mpg. I put on mostly Highway and use Lucas oil stabalizer, so I change my oil every 6000 miles.  It does not use any oil between changes.  I also use the Fuel product. With the higher gas prices, I am enjoying hybrid quality MPG with a car that is over 12 years old. I was getting 34 mpg not using your fuel product. I started using it again and the 1st tank I got 36.7.  The 2nd tank was 36.4.  Awesome!  I would like to have my car be a billbord for Lucas Oil Products.  What great products!

Randy Caley

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