Marine Engine Oil & Fuel Treatment

Between oil changes and scheduled services, a handful of treatment products do the quiet work of keeping your outboard healthy. Fuel stabilizer prevents ethanol-blended gasoline from degrading and forming varnish deposits in the carburetor or fuel injectors during storage. Fogging oil coats cylinder walls, intake passages, and internal metal surfaces against corrosion during off-season lay-up. Corrosion inhibitor sprays protect external metal surfaces from salt-air oxidation that begins minutes after saltwater exposure.

These are not optional products for boaters who take care of their equipment. An untreated outboard stored for the winter with ethanol-blend gasoline in the fuel system is almost guaranteed to need carburetor cleaning in spring. A single can of fuel stabilizer and a fogging oil treatment prevent the most common seasonal maintenance problems outboard owners face.

Boat Max Online stocks treatment products compatible with Honda, Suzuki, Yamaha, and all major outboard brands. Many of our treatment products are OEM-branded by the engine manufacturers: the same products their authorized dealers use.

Product Categories

Product Type	When to Use	Key Benefit
Fuel Stabilizer	Before storage, any period over 30 days	Prevents ethanol phase separation and varnish formation
Ethanol Treatment	Every fill-up in ethanol-blend markets	Disperses water from ethanol absorption, protects fuel system
Fogging Oil	Before winter lay-up	Coats cylinder walls and internal surfaces against corrosion
Corrosion Inhibitor Spray	After every saltwater use	Displaces moisture, protects electrical connections and metal
Engine Flush (flush fluid)	During flush procedure after saltwater	Removes salt deposits from cooling passages
Gear Lube Additive	With lower unit gear oil change	Adds anti-wear protection to lower unit gears and bearings

Marine Engine Oil & Fuel Treatment Products

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