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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Corey Homer uses Oil Stabilizer in modified 1965 Corvair Corsa

I added oil stabilizer (20% ratio as recommended) to my mildly modified 1965 Corvair Corsa. I had a technical question. It seems that all things set equal other than adding the stabilizer, my idle speed is faster than before. I am a degreed engineer, so I put on my problem solving hat. The best I could come up with is that the stabilizer has reduced the overall friction between components. Therefore, at the given idle air/fuel ratio the engine is able to spin freer. Is this possible? I have no problem stepping down the idle circuit a bit, but I guess I never expected to see that much difference. If that is the case, hats off to a great product. Plus, since the car is air cooled, head temps hover around 400F under normal operating conditions. I figured normal motor oil could use the added bonus of the stabilizer when continually operating at elevated temps.

Any hint regarding the idle question would be appreaciated.

Again, what phenominal product!

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