Top 10 Best Fuel Additive For 4 Stroke Outboard of 2022 – Expert Buyer Guide

Are you tired of seeking the best fuel additive for 4 stroke outboard but not being able to discover any? Given how many items there are now, its understandable. Furthermore, with the advent of marketing strategies, finding the correct fuel additive for 4 stroke outboard this year may be more difficult. There is good news! We have already done the legwork for you. Our specialists were able to identify the best ones available after going through many different brands and a large number of products! They are as follows:

Comparison Chart for Top Rated Fuel Additive For 4 Stroke Outboard

Ranking Products Name Action
01 YAMAHA ACC-RNGFR-PL-12 Yamalube Ring-Free Fuel Additive Check Price
02 Yamaha Outboard Ring Free Plus Fuel Additive Quart (32 ounce) ACC-RNGFR-PL-32 Check Price
03 Seachoice 21000 2-Cycle Engine Oil-to-Gas Measuring Container, 32-Ounce Wide Mouth Bottle Check Price
04 Attwood 11873-1 Wide-Mouth Marine Fuel/Oil Mixing Bottle 1-Quart Check Price
05 Mercury Marine Quickleen Engine and Fuel System Cleaner, 12 Ounces 92-8M0047931 Check Price
06 STAR BRITE Star Tron Enzyme Fuel Treatment – Concentrated Gasoline Formula – 1 oz. Treats 16 Gallons – 32 OZ (093032SS) Check Price
07 STA-BIL Fast Fix Small Engine Treatment – Cleans Carbs and Injectors – Fixes Rough Running Engines – Eliminates Water – Treats 10 Gallons, 4 fl. oz. (22303), Green Check Price
08 Mercury Quickare Fuel Treatment Additive – 92-8M0047320 Check Price
09 STA-BIL Storage Fuel Stabilizer – Guaranteed To Keep Fuel Fresh Fuel Up To Two Years – Effective In All Gasoline Including All Ethanol Blended Fuels – For Quick, Easy Starts, 4 fl. oz. (22205) Check Price
10 STA-BIL 360 Marine Ethanol Treatment and Fuel Stabilizer – Prevents Corrosion – Helps Clean Fuel System For Improved In-Season Performance – Treats Up To 80 Gallons, 8 fl. oz. (22239) , Black Check Price

10 Best Fuel Additive For 4 Stroke Outboard Reviews

01 YAMAHA ACC-RNGFR-PL-12 Yamalube Ring-Free Fuel Additive

Improves power and efficiency in two and four stroke engines

Removes and prevents carbon and varnish deposits from injectors, carburetors, intake valves, intake ports and combustion chambers

Fights corrosive elements of sulfur in Ethanol blended fuels

Use with Yama lube Fuel Stabilizer and Conditioner PLUS to prevent any harmful effects

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01 Yamaha Outboard Ring Free Plus Fuel Additive Quart (32 ounce) ACC-RNGFR-PL-32

Synthetic PLUS formula provides superior deposit control, cleaning fuel injectors, carburetors, intake valves, intake ports, and combustion chambers

Featuring metal filmers, it also protects silver solder, copper, aluminum, and steel in a fuel system from the corrosive affects of ethanol sulfate salt.

Yamalube Oils

Yamalube

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03 Seachoice 21000 2-Cycle Engine Oil-to-Gas Measuring Container, 32-Ounce Wide Mouth Bottle

Measure the correct amount of 2-cycle engine oil every time

Clear plastic bottle has gas-volume markings in liters and gallons

Determines ratios for 100:1, 50:1, 40:1 and 24:1 oil-to-gas mixtures

Designed to prevent fouled plugs or seized engines caused by an incorrect amount of oil

32-ounce capacity

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04 Attwood 11873-1 Wide-Mouth Marine Fuel/Oil Mixing Bottle 1-Quart

Convenient wide-mouth, quart-size bottle

Clear oil level marks in black

Quickly and precisely determines ratios for 100:1, 50:1, 24:1 and 10:1 mixes

Attwood products are both compatible and reliable, engineered and built with a never-fail attitude

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05 Mercury Marine Quickleen Engine and Fuel System Cleaner, 12 Ounces 92-8M0047931

Quickleen For use as needed throughout the boating season

Aggressive cleaners work to quickly and thoroughly remove carbon deposits from carburetors and injectors, intake valves, spark plugs, piston crowns, and cylinder heads

Prevents engine knocking and piston seize-up as well as Extends spark plug life

This product does not contain fuel stabilizers. Use with Quickare to prevent fuel breakdown and oxidation.

1 ounce treats 5 gallons – 12 ounce bottle treats 60 gallons

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06 STAR BRITE Star Tron Enzyme Fuel Treatment – Concentrated Gasoline Formula – 1 oz. Treats 16 Gallons – 32 OZ (093032SS)

Cures and prevents ethanol fuel problems; helps prevent phase separation

For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel

Makes engines start easily and run smoothly; improves fuel economy and reduces emissions

Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions

Concentrated formula #930XX is economical to use in large and small applications; safe for use in all engines (including 2-cycle pre-mix)

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07 STA-BIL Fast Fix Small Engine Treatment – Cleans Carbs and Injectors – Fixes Rough Running Engines – Eliminates Water – Treats 10 Gallons, 4 fl. oz. (22303), Green

Fixes poor/non-running engines by eating the gum and varnish that causes rough starts, or no starts

Fixes issues caused by ethanol blended fuels

Cleans the entire fuel system – Simultaneously cleans injectors/carburetors while cleaning the rest of the fuel system

Prevents the need to disassemble the engine and is compatible with ALL small engines including snow blowers, lawn mowers, chainsaws, generators, and more!

Treats 10 gallons

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08 Mercury Quickare Fuel Treatment Additive – 92-8M0047320

Great for cleaning up existing deposits in untreated fuel lines, tanks, carburetors, injectors, intake valves, and spark plugs

Keeps your fuel fresh for up to three months

Can be used in all 2 and 4 cycle carbureted and fuel-injected gasoline engines

Use one ounce to treat every 10 gallons of fuel.

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09 STA-BIL Storage Fuel Stabilizer – Guaranteed To Keep Fuel Fresh Fuel Up To Two Years – Effective In All Gasoline Including All Ethanol Blended Fuels – For Quick, Easy Starts, 4 fl. oz. (22205)

Quickleen For use as needed throughout the boating season

Aggressive cleaners work to quickly and thoroughly remove carbon deposits from carburetors and injectors, intake valves, spark plugs, piston crowns, and cylinder heads

Prevents engine knocking and piston seize-up as well as Extends spark plug life

This product does not contain fuel stabilizers. Use with Quickare to prevent fuel breakdown and oxidation.

1 ounce treats 5 gallons – 12 ounce bottle treats 60 gallons

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10 STA-BIL 360 Marine Ethanol Treatment and Fuel Stabilizer – Prevents Corrosion – Helps Clean Fuel System For Improved In-Season Performance – Treats Up To 80 Gallons, 8 fl. oz. (22239) , Black

STA-BIL 360 Marine 8 fl. oz.

Enhanced water removal properties; perfect for Marine environments

Prevents fuel system corrosion. Helps clean fuel system for improved in-season performance. Keeps fuel fresh for up to 12 months.

Helps increase engine power and gas mileage

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Buying Guide

When you have to pick the right fuel additive for 4 stroke outboard from thousands of options available in online marketplaces, there are a few factors that can help you pick. Along with the warranty and price of the item, there are some other factors that you should have in mind before making your purchase. Here are some of the key subjects that our experts recommend you should check before buying fuel additive for 4 stroke outboard .

Material

The material of fuel additive for 4 stroke outboard affects the quality of it. Better material results in higher durability. That’s why you should always check what materials the fuel additive for 4 stroke outboard is made of. Compare different items and pick one that has better material construction. This will make the selection process much easier and help you find the proper fuel additive for 4 stroke outboard for your needs!

Ease of Use

There are far too many fuel additive for 4 stroke outboard out there that are not suitable for fast operation. Ease of use is a big factor considering you would want to use the item without too much issue. That is why checking out how the item works is a great idea while picking your fuel additive for 4 stroke outboard .

Final Note

When it comes to safety, choosing an item from a well-known brand is always a good idea. You can, however, choose items from newer names that have received positive evaluations. Whatever method you use to make your purchase, be sure you have all of the necessary information before making a decision.
Check out our shopping guide for fuel additive for 4 stroke outboard to learn more about how to get the best one for you!