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
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Connell Miller uses Lucas Heavy Duty Oil Stabilizer in 1988 Ford van

Several months ago I bought an '88 Ford custom van that supposedly had a new engine with only 46,000 miles on it. Within a short period I was having to add one or two quarts of oil per week (even without a lot of miles being driven) and was suffering from badly fouled plugs.

My faithful mechanic for the last ten years, after changing the plugs, told me to use the Lucas Heavy Duty Oil Stabilizer. I'd never really had a belief in oil additive-type products, thinking they were all probably more hype than substance. But after just a few days and I was down again, I bought a bottle.

Since I was two quarts low, I put in the full 32 oz. And guess what - that was 3 1/2 months ago! My oil pressure has gone up, no more missing from fouled plugs, and I just now have added about a quart of the Oil Stabilizer to bring it up to full!

Gentlemen, I am sold! Thanks for making a product that makes good on its advertised promises!

Connell Miller

Fayetteville Arkansas

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