Marine Lubricants & Fuel Additives

Q: Can I use automotive oil in my boat engine?

No. Automotive oil lacks corrosion inhibitors and additives found in marine-specific oils. Always use NMMA FC-W or TC-W3 rated marine oils.

Q: What’s the best fuel additive for ethanol fuel?

Use a marine fuel stabilizer that prevents ethanol phase separation, corrosion, and gum buildup.

Q: How often should I change gear lube?

Change marine gear lube every 100 hours of operation or annually to maintain protection and prevent water contamination.

Q: Do I need fogging oil?

Yes, fogging oil coats internal engine surfaces to prevent corrosion during storage.

Protect, Lubricate & Optimize — Premium Marine Lubricants & Fuel Additives

Keep your vessel performing at its best with high-quality marine lubricants and fuel additives from The Outdoor Warehouse. From engine oils to gear lubes, greases, and fuel stabilizers, we offer trusted products designed for marine engines exposed to saltwater, heat, and vibration.

Also known as boat motor oil, marine fuel stabilizer, gear lube, corrosion inhibitor, and anti-seize compound — each product protects critical systems and extends engine life.

Why Marine Lubricants & Additives Matter

Engine Longevity: Reduces friction and wear in 2-stroke and 4-stroke marine engines.
Fuel Reliability: Prevents ethanol separation and keeps gas fresh during storage.
Corrosion Protection: Defends against rust, saltwater, and oxidation.
Performance Boost: Cleaner combustion and smoother operation season after season.

Marine Lubricants & Additives at a Glance

Product Type	Best For	Key Benefits
Marine Engine Oil	Everyday lubrication	OEM-approved, 2-stroke & 4-stroke protection
Fuel Additives	Fuel system maintenance	Stabilizes fuel, prevents ethanol phase separation
Gear Lube	Lower units & transmissions	High-pressure protection, anti-foam, anti-corrosion
Hydraulic Steering Fluid	Hydraulic steering systems	Ensures smooth, reliable control under pressure
Marine Grease	Bearings, prop shafts, fittings	Waterproof, long-lasting, salt-resistant
Anti-Seize & Assembly Lubes	Engine service & installation	Prevents galling, corrosion, and seizing
Fogging Oil	Off-season storage	Protects internal cylinders from rust and corrosion

Shop Marine Lubricants by Category

Fuel Additives Marine Engine Oil Gear Lube Hydraulic Steering Fluid Marine Grease Anti-Seize & Assembly Lubricants Fogging Oil Transmission Fluid

Marine Lubricant Education

Marine lubricants are engineered to withstand the demands of marine engines, where moisture, high loads, and extended idling can accelerate wear. Unlike automotive oils, these products include special anti-corrosion and detergent additives for marine use.

Always choose the correct viscosity and OEM specification for your engine type. For example, 2-stroke oil mixes fuel and oil, while 4-stroke engines require crankcase lubrication.

Reminder

Check fluid levels before every outing. Replace engine oil, gear lube, and filters according to your manufacturer’s service schedule. Use fuel stabilizers during off-season storage to prevent gumming or phase separation.