Synthetic SAE 10W-40 Outboard Engine Oil

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Synthetic SAE 10W-40 Outboard Engine Oil

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 Watercrafts.

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)

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* Size:


  • #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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Erik de Vries uses Lucas Fuel Treatment

I recently bought my F-250. It had 260,000 km on it. The engine idled a bit roughly at stoplights when warm, was otherwise fine. I changed the fuel filter with little effect. I then tried several other "Fuel System" products, including the cleaner/anti gel I normally run in my Volvo Semi Truck in winter. There was a bit of improvement but I wasn't happy and thought I needed a new injector.

Last week I bought a gallon of your product on sale at a truck stop in Washington State. I put half in my Tractor's tanks, and then filled the bottle again with diesel fuel.

I poured this 50/50 mix into the tanks of my Ford, and by the time I'd driven 60 miles, it idled smoothly and cleanly.

I've fueled the pickup several times since then, adding your product only every second fill and it still runs smoothly.

I normally never write testimonials, but you saved me a lot of money and grief.

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