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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Gary found Lucas Oil 5W-30 increased oil pressure & MPG while smoothing out and quiting the engine idle on his 97 Camaro

Hey Lucas team! I wanted to say that i've been using your oil additive for several years in my 89 chevy 1500 and I used it once in my 97 camaro, well it made that truck run like new, but I couldn't tell a difference in my camaro wich has145k miles on it, it's a 1997 Z28, so a few days ao I changed my oil and this time I used your 5w-30 motor oil by itself and I got it on sale with a filter for 20$ at autozone, it was too good to be true, well the second I started the car after the change, and the oil pressure caught up, my engine got quiet and the idle smoothed out instanly, I'm amazed at how much smoother it drives now I'm never going to change oils again, it's getting better mpg's, and just runs so much better! Thanks! Next I'm going to try your transmission additive and I know you won't let me down, I've also used the injecor cleaner and it works like a charm. Lucas is #1


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