Outboard Engine Oil Synthetic SAE 10W-40

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Outboard Engine Oil Synthetic SAE 10W-40

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Lucas Synthetic SAE 10W-40 Outboard Engine Oil is formulated especially for the harsh conditions of high speed watercrafts. These outboard engine oils are catalyst compatible and designed for 4-Stroke applications but also work well in Inboards and Personal Water Crafts.

Long lasting and safely blends with synthetic & non-synthetic oils, Lucas outboard engine oils are fortified with a special blend of synthetic additives that coat all moving parts to guard against rust and moisture during long periods of storage.

Key Benefits

  • Excellent for use with supercharged, turbo charged or nitrous oxide high performance engines
  • Protects against rust and moisture during long periods of storage
  • Safely blends and is compatible with synthetic and non-synthetic oils
  • Provides rust and corrosion protection in both fresh water and salt water environments
  • Effective Water Resistance
  • Long Lasting
  • Resist Extreme Pressure
  • Extreme Friction Reducer
  • Contains a special additive package to improve wear protection and increase catalyst life in newer outboards using catalytic converters
  • NMMA® Certified to meet or exceed FC-W (CAT) performance
  • Meets JASO MA standards for air-cooled motorcycles and all-terrain vehicles
  • Meets industry standard API SM (automotive)


  • #10662 - 1 Quart (Case of 6) - 13 lbs
  • #10813 - 5 Quarts (Case of 3) - 31 lbs


Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet
zinc Zinc Values

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Rachel Twine uses Lucas Heavy Duty Oil Stabilizer in 1987 Mazda B2200

My 1987 Mazda Pickup was making some lifter noise. It is a fairly common problem, and since these lifters only had about 50,000 on them, I didn't want to replace them right away. I tried the Lucas Heavy Duty Oil Stabilizer and all ticking has ceased, and I have more power and a smoother running engine. My beloved Mazda has 460,000 on it and runs beautifully. We now use this product, along with the Lucas 15/40 truck oil, in all our vehicles, from the Mazda to the Peterbilt to the farm tractors. Wonderful products!

British Columbia

Rachel Twine

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