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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Kelly Fisher uses Lucas Transmission Fix in 93 Buick Skylark

My name is Kelly and like a lot of females out there I don't know squat about cars but one thing I have learned is how great and effective Lucas products are.

About 4 yrs ago I bought a 93 Buick Skylark. Almost as soon as I got it I noticed it had transmission problems. I took it to a local mechanic who informed me that I would need a new transmission within 3000 miles. Needless to say a new transmission is not a cheap fix so my husband told me to put Lucas Transmission Fix in the car to help it out until we could get the money to fix the car. When I came home with another product becaue it was less expensive he sent me back to the store and said only Lucas will do. I had no idea how right he was and how wonderful your product is. It is now 4 years later and we have put 50,000 miles on that Buick with no new transmisson. I firmly believe Lucas saved the life of my car.

If that wasn't enough to write you about I have just had my second experience where Lucas Transmission Fix has saved my vehicle. I also have a 98 Mercury Sable SW that spontaniously started pouring transmissoin fluid out of the car. Luckily I was near a store when this happened and had to get some Transmission Fluid and most importantly I knew I had to have some Lucas. I filled the car up and drove it about 50 miles to a shop where they looked it over but told me they could find no leak. After informing the mechanics what happened the could only assume that I had a bad seal and as promised on the label it completly stopped my seal leak. I have no idea how or why this product works so much more effectivly than other products on the market but there is no alternative in my book. I am a true fan and tell everyone I can about my experience with this product and encourage them to try it for themselves.

Thank You

Kelly Fisher

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