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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Mark McDaniel uses Lucas Oil Stabilizer in 1984 F-150 4wd pick-up

I have a 1984 F-150 4wd pick-up that has over 175k on it that I bought off my brother. He was a big believer in your product and had always used your oil treaatment when it was time to change oil so I cuntinued using it and even started using it in my other truck.

Last Friday (04-13-07) I changed oil in both of my trucks and added one bottle of oil treatment in each. Little did I know that when I removed the old filter on the F-150 the seal remained stuck to the block and I screwed the new one right on top of it. I crancked up and continued filling the motor with oil. The next day I drove my truck to the store in town about six miles away in pourring down rain. When I got out I smelled oil and thought nothing of it deciding it was just oil I had spilled on the manifold. When I came out of the store I climbed in and set sail for home, never considering all the oil present on the water in the parking lot had just been pourring out of my truck. It took until the next day for me to investigate the new lifter tapping noise my truck was making only to discover THERE WAS NO OIL IN IT! I went back to NAPA and repurchased supplies and performed the job correctly this time and after all that my truck is still running great. I GIVE YOUR OIL TREATMENT ALL THE CREDIT FOR SAVING MY ENGINE - YOU GUYS ARE GREAT. THANK YOU!!!

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