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Marine Fuel Additives

      • Quicksilver Quickleen Fuel System Cleaner 12 oz
        $17.99
        $14.99

        Quicksilver Quickleen Fuel System Cleaner Keep your engine running strong with Quicksilver Quickleen Fuel System Cleaner. Designed to remove gum, varnish, and carbon buildup, this powerful formula protects fuel lines, tanks, carburetors, and injectors...

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      • Starbrite Star-Tron Fuel Treatment 8 oz
        $10.99

        Starbrite Star-Tron Fuel Treatment Starbrite's StarTron fuel system additive resolves most fuel-related engine issues. StarTron is a multi-functional additive that allows marine engines to start easily and run smoothly, even when using ethanol-blended...

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      • Johnson Evinrude OMC Engine Tuner
        $22.99
        $14.99

        Johnson Evinrude OMC Engine Tuner Johnson Evinrude Engine Tuner is recommended to maintain full power and efficiency in outboard motors, marine engines, power tools, snowmobiles, and other internal combustion 2- and 4-cycle engines. For use in engine...

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      • Quicksilver Quickare Fuel Treatment
        $16.19
        $13.49

        Quicksilver Quickare Fuel Treatment Mercury Quicksilver Quickare is a fuel treatment for all grades of gas and ethanol blends. This OEM-recommended fuel treatment will maximize your engine's performance and stabilize your fuel. It is recommended that...

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      • 2+4 Fuel Conditioner for Johnson/Evinrude/OMC - 8 oz Bottle
        $16.49
        $10.49

        Johnson/Evinrude 2+4 Fuel Conditioner The Johnson/Evinrude 2+4 Fuel Conditioner protects the complete fuel system, conditions fuel, and extends the shelf life of fresh fuels. This fuel stabilizer is recommended for day-to-day operation, particularly...

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      • Starbrite Engine Fogging Oil - 12oz Aerosol
        $11.49
        $6.49

        Starbrite Engine Fogging Oil - 12oz Aerosol Use Starbrite Engine Fogging Oil for maximum protection of all engines in seasonal or long-term storage. This product protects internal surfaces for over one year and will not foul plugs/injectors come spring...

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      • Starbrite EZ Store EZ Start Gas Storage & Stabilizer 8 oz
        $10.49

        Starbrite EZ Store EZ Start Gas Storage & Stabilizer Starbrite EZ to Store, EZ to Start Gas Storage and Stabilizer stabilizes fuel for up to one year. This stabilizer protects gas and engine components during storage and is ideal for use in boats,...

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      • Sta-Bil Marine Ethanol Formula 32 oz
        $14.94
        $12.99

        Sta-Bil 360° Marine Fuel Treatment Sta-Bil 360° Marine Fuel Treatment is engineered to combat the effects of harsh marine climates. This fuel treatment cleans the fuel system and ensures your boat's engine is operating at peak performance...

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      • Quicksilver 8M0047922 QuickStor Fuel Stabilizer
        $17.99
        $14.99

        Quicksilver 8M0047922 Quickstor Fuel Stabilizer - Gas Engines QuickStor Fuel Stabilizer helps prevents regular and ethanol-blended fuel from breaking down and oxidizing. This fuel stabilizer also prevents gum and varnish from forming in the fuel and...

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      • Starbrite Star Tron Fuel Tank Cleaner- 64 oz
        $53.99
        $30.99

        Stabrite Star Tron Gasoline and Diesel Fuel Tank Cleaner 64oz Starbrite Star Tron Gasoline Gas Tank Cleaner is a safe and easy way to remove harmful sludge and other gunk from aged or contaminated fuel tanks. As a powerful alternative to traditional...

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      • Yamaha Outboard Fuel Stabilizer & Conditioner - 12oz
        $6.99
        $5.99

        Yamaha Outboard Fuel Stabilizer & Conditioner The Yamalube fuel stabilizer and conditioner is designed to treat modern day gasoline, increasing its short shelf life. The longer gasoline sits the less performance it can deliver. Best used with fresh...

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      • Sta-Bil Fuel Stabilizer
        $8.04
        $6.99

        Sta-Bil Fuel Stabilizer Sta-Bil Fuel Stabilizer keeps fuel fresh for quick and easy starts after storage. Stored fuel can go bad in as little as 30-60 days causing gum, varnish, and corrosion to build up in the fuel lines and engine. This stabilizer...

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      • Sta-Bil Engine Fogging Oil
        $7.30
        $5.49

        Sta-Bil Engine Fogging Oil Sta-Bil Fogging Oil is an aerosol propelled oil treatment that protects internal engine components during storage. Fogging oil extends the life of the engine and reduces its maintenance and repair costs. This convenient...

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      • Yamaha Outboard Yamalube Ring Free Fuel Additive - 12 oz
        $26.99
        $23.49

        Yamaha Outboard Yamalube Ring Free Fuel Additive - 12 oz One of the popular questions that Wholesale Marine representatives are asked is if they should use a fuel additive for their boat. We advise that it is because a good brand of marine fuel...

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      • Starbrite Star Tron 1oz Enzyme Fuel Treatment
        $5.00
        $2.50

        Starbrite Star Tron 1oz Enzyme Fuel Treatment - Super Concentrate The Star Tron fuel treatment is a multifunctional fuel additive utilizes a unique enzyme technology to help with easier starts and for engines to run smoothly while running. ...

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      • Johnson/Evinrude Carbon Guard Fuel Additive 12oz
        $46.99
        $29.99

        Johnson/Evinrude Carbon Guard Fuel Additive 12oz Johnson/Evinrude Carbon Guard is a gasoline additive formulated to minimize deposit build-up in 2-cycle and 4-cycle marine engines when used as directed. Benefits: Reduced possibility of piston ring...

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      • Johnson-Evinrude Fogging Oil Spray
        $21.99
        $13.99

        Johnson-Evinrude Storage Fogging Oil Johnson/Evinrude Fogging Oil is formulated to combat rust and corrosion in 2- and 4-cycle engines during out-of-season storage. This product is ideal for outboard and inboard motors, snowmobiles, lawn mowers, and...

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      • Starbrite Star-Tron Diesel Additive 16 ounce
        $38.49
        $21.99

        Starbrite Star-Tron Diesel Additive Starbrite Star Tron Enzyme Fuel Treatment is a multi-functional fuel additive which uses a unique enzyme technology that allows all engines to start easily and run smoothly, even after sitting idle for months...

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      • Starbrite Star Tron Stabilizer+ Fuel Storage 8 oz
        $7.46
        $6.49

        Starbrite Star Tron Stabilizer+ Fuel Storage  Ensure your fuel quality during storage with Starbrite's Star Tron Stabilizer+ Fuel Storage. This fuel additive is not only perfect for stored boats, but can also be used in motorcycles, lawn equipment,...

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      Marine fuel stabilizer

      Why Shop at Wholesale Marine for Fuel Additives?

      If you need to keep your fuel fresh and your engine protected, Wholesale Marine makes it simple. Here’s why boaters trust us for their marine fuel additives and treatments:

      • Free Shipping Over $99 on qualifying orders, so you can stock up on all your winterization essentials.
      • Low Price Guarantee to ensure you get the best marine fuel stabilizer at the right price.
      • 90-Day Returns for stress-free shopping if your plans or storage needs change.
      • Captain’s Club Rewards to earn points on every purchase and save on future projects.

      Fuel Treatments That Keep Boats Running Strong

      Your engine doesn’t care how long your boat’s been sitting; it just needs clean, stable fuel when it’s time to fire up. That’s where the right marine fuel additive makes all the difference. Whether you're prepping for winter or keeping things running smoothly between trips, Wholesale Marine carries fuel stabilizers built for the long haul. Check out these popular picks for boaters:

      With one of the widest selections online, we make it easy to find the best fuel stabilizer for boats so you can store your vessel with confidence.

      Benefits of Marine Fuel Stabilizers for Storage and Performance

      Ethanol-blended fuel may work fine on the road, but it’s tough on boats. A quality marine fuel stabilizer protects against phase separation, corrosion, and buildup that can leave you with clogged lines and rough starts come spring. Pairing your winterization routine with the best marine fuel stabilizer means fresher fuel, cleaner injectors, and a smoother-running engine when it’s time to get back on the water.

      Pro Tips:

      • Add your marine fuel additive before topping off your tank to ensure proper mixing.
      • If your boat will sit for several months, choose a marine fuel treatment designed for long-term storage. It keeps your fuel fresh and your system protected.

      Prepare Your Boat for Storage with Wholesale Marine

      Don’t let stale fuel or ethanol damage take the fun out of boating season. Stock up on the best marine fuel stabilizer today and protect your tank, lines, and engine during storage.

      Buy your marine fuel treatment or boat fuel additive today with our Low Price Guarantee!

      Marine fuel treatment
      Fuel stabilizer for boats

      Frequently Asked Questions About Marine Fuel Stabilizers

      Confused about which marine fuel treatment or boat fuel additive is right for your setup? Here are some quick answers to help you make the right choice for your boat and storage needs.

      How does a marine fuel stabilizer protect my boat?

      A marine fuel stabilizer keeps gas from breaking down, prevents phase separation in ethanol blends, and adds corrosion inhibitors to protect your tank, lines, and injectors during storage.

      Can I use the same fuel stabilizer for ethanol and non‑ethanol gas?

      Yes. Many marine fuel additives are formulated for use in both ethanol‑blended and non‑ethanol fuels. Always check the label to confirm compatibility with your engine and fuel type.

      When should I add a boat fuel additive?

      Add your boat fuel additive before topping off your tank. This ensures the stabilizer mixes thoroughly with the fuel, giving you full protection during storage.