Synthetic SAE 75W-90 M8 Marine Gear Oil

Lucas Oil Products, Inc.

Marine Gear Oil Synthetic SAE 75W-90 M8

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
  • #10818 - 55 Gallon Drum - 440 lbs


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

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Carleen Clark uses Lucas Heavy Duty Oil Stabilizer in 1979 Pontiac Firebird

The guys at my favorite parts store recommended Lucas products to me and I am so glad they did! My Bird was using a little oil between changes, the Oil Stabilizer fixed that. The oil pressure is better than ever, too. A couple of annoying drips, and the trans fix and power steering stop leak lived up to their names. NO more spots on the garage floor! I also regularly use the fuel treatment.. Redbird passed the last smog check with numbers so good the smog tech couldn't believe it. My car has 141,000 miles on her and has never run better. I am a Lucas devotee and will never use anything else- thank you for making such wonderful products!!

Carleen Clark

Yuba City, CA

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