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10 Best fuel stabilizers of 2026
Save up to 34% off
Best Choice1
STA-BIL9.9Exceptional
STA-BIL Storage Fuel Stabilizer, 16 oz
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product dimensions:18 x 45 x 923 inches
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exterior:Machined
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item weight:15.4 ounces
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special features:DIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 2.5 gallons (9.5 L) of fuel. Use STA-BIL only with fresh fuel and keep gas can or tank 95% full to avoid condensation build up during storage. Run engine for 5 minutes after adding product to treat entire fuel system., ENSURES QUICK, EASY STARTS – Treating your gas with this fuel stabilizer prevents gum, varnish, rust, and corrosion in your fuel tank, all of which are costly to repair. The 16 oz. bottle of this alcohol-free fuel additive treats up to 40 gallons of fuel, and it is perfect to use prior to storing either your vehicle or outdoor power equipment for an extended period., SHELF LIFE – All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois., STORAGE – STA-BIL Storage Fuel Stabilizer eliminates the need to drain fuel and keeps gasoline fresh for up to 24 months. Never fear your car or small engine refusing to start due to fouled fuel. This product is effective in all gasoline and ethanol blended fuels including E-10 through E-85., VERSATILE – STA-BIL Storage Fuel Stabilizer is safe for use in all gasoline engines, including 2-cycle. Use this fuel treatment in your vehicle, motorcycle, lawn mower, snow blower, boat, and generator.
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item model number:22207
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Value for Money2
STA-BIL9.8Exceptional
STA-BIL Storage Fuel Stabilizer, 8 oz 12-Pack
29% Off-
product dimensions: 165 x 378 x 736 inches
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exterior:N/A
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item weight: 8.2 ounces
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special features: Prevents gum and varnish build-up, Eliminates the need to drain the fuel prior to storage, Effective in ALL gasoline, including ethanol blended gas, Ensures a quick & easy start after storage, Keeps fuel fresh for up to 24 months during storage
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item model number: 22208
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3
STA-BIL9.7Exceptional
STA-BIL Storage Fuel Stabilizer, 32 oz
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product dimensions: 10.2 x 4.6 x 2.9 inches
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exterior:N/A
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item weight: 1.83 pounds
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special features: DIRECTIONS Bottle Directions: To measure small quantities: remove small cap and seal on long neck , squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour measurements on bottle side . Usage Directions: 1 oz 30 mL treats up to 2.5 gallons 9.5 L of fuel. Use STA-BIL only with fresh fuel and keep gas can or tank 95 full to avoid condensation build up during storage. Run engine for 5 minutes after adding product to treat entire fuel system., ENSURES QUICK, EASY STARTS Treating your gas with this fuel stabilizer prevents gum, varnish, rust, and corrosion in your fuel tank, all of which are costly to repair. The 32 oz. bottle of this alcohol-free fuel additive treats up to 80 gallons of fuel, and it is perfect to use prior to storing either your vehicle or outdoor power equipment for an extended period., SHELF LIFE All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois., STORAGE STA-BIL Storage Fuel Stabilizer eliminates the need to drain fuel and keeps gasoline fresh for up to 24 months. Never fear your car or small engine refusing to start due to fouled fuel. This product is effective in all gasoline and ethanol blended fuels including E-10 through E-85., VERSATILE STA-BIL Storage Fuel Stabilizer is safe for use in all gasoline engines, including 2-cycle. Use this fuel treatment in your vehicle, motorcycle, lawn mower, snow blower, boat, and generator.
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item model number: 22214
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4
STA-BIL9.5Excellent
STA-BIL Storage Fuel Stabilizer, 1 Gallon
34% Off-
product dimensions: 12 x 4 x 8 inches
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exterior:N/A
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item weight: 0.01 ounces
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special features: Prevents gum and varnish build-up, Eliminates the need to drain the fuel prior to storage, Effective in ALL gasoline, including ethanol blended gas, Ensures a quick & easy start after storage, Keeps fuel fresh for up to 24 months during storage
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item model number: 0810.1191
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5
STAR BRITE9.2Excellent
STAR BRITE Star Tron Enzyme Fuel Treatment - Concentrated Formula 32 Fl. Oz. – Treats up to 512 Gallons - Fuel Stabilizer & Treatment, Gasoline Stabilizer, Star Tron Marine Enzyme Fuel Treatment
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product dimensions: 3 x 4.5 x 10.25 inches
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exterior: Polished
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item weight: 1.9 pounds
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special features:N/A
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item model number: 093032SS
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6
STA-BIL9.1Excellent
STA-BIL 360 Marine Fuel System Treatment, 32 oz
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product dimensions:10.94 x 9.74 x 9 inches
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exterior:N/A
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item weight:1.93 pounds
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special features:DIRECTIONS – Bottle Directions: To measure small quantities: remove small cap and seal (on long neck), squeeze bottle to desired level, and pour. To measure large quantities: remove large cap and seal, pour (measurements on bottle side). Usage Directions: 1 oz (30 mL) treats up to 10 gallons (38 L) of fuel. Recommended for use at every fill up in season for year-round performance and protection., IMPROVES PERFORMANCE – By combating the effects of harsh marine climates, this fuel additive helps to clean your fuel system. With gasoline pumping through your engine, it is imperative to use this fuel treatment in fresh gas at every fill up in order to ensure your engine is operating at peak performance., PREVENTS CORROSION – STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer is the ultimate treatment and protection against ethanol blended fuels. This formula contains PEA fuel system cleaners, and it removes water from your gas tank which prevents gum, varnish, rust, and corrosion from appearing., SHELF LIFE – All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois., VERSATILE – STA-BIL 360 Marine is an alcohol-free water remover that is very concentrated, and the 32 oz. bottle can be used to treat up to 320 gallons of fuel. This marine fuel stabilizer keeps fuel fresh up to 12 months, and it is safe for use in your boat, jet ski, and every gasoline-powered watersport engine.
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item model number:22240
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7
STA-BIL8.9Very Good
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green
17% Off-
product dimensions:2.2 x 2.2 x 5.5 inches
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exterior:N/A
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item weight:7.4 ounces
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special features:DIRECTIONS – For rough running engines use 1 oz. of STA-BIL Fast Fix per 2.5 gallons of fuel. Fill with fresh gas. Start the engine and allow to run for 15 minutes to allow the additive to work its way through the fuel system. If the engine does not start, attempt to turn it over a few times so the additive makes its way through the fuel system and allow to sit overnight. Attempt to start again, if problems persist you may need to have it looked at by a mechanic., ELIMINATES WATER – This fuel injector cleaner helps to remove water that may get into your fuel system. Penetrating deep into the fuel line, this simple fuel additive prevents the need to disassemble the engine. The 8 oz. bottle of this alcohol-free fuel additive treats up to 20 gallons of fuel., FIXES ROUGH RUNNING ENGINES – STA-BIL Fast Fix eats away at gum and varnish that cause rough starts and no starts in your small engine equipment. This easy-to-use fuel additive combats the effects of ethanol blended gasoline., SHELF LIFE – All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package! Proudly made in the USA by a family-owned company in Chicago, Illinois., VERSATILE – Compatible with all small engines, adding STA-BIL Fast Fix to your 2-cycle or 4-cycle small engine cleans carburetors and injectors while acting as a water remover. Use this product in your lawn mower, chainsaw, trimmer, snow blower, generator, and more.
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item model number:22304
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8
Gold Eagle8.7Very Good
Fuel Stabilizer, 1 Gallon
22% Off-
product dimensions: 7 x 4.6 x 10.1 inches
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exterior: Black
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item weight: 5 pounds
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special features:N/A
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item model number: 22213
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9
STA-BIL8.5Good
STA-BIL In-Season Protection Fuel System Treatment & Injector Cleaner, 4 oz
23% Off
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10
STAR BRITE8.4Good
Star Tron Enzyme Fuel Treatment - Gas, Stabilizes Old Gasoline
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product dimensions: 2.25 x 3.75 x 8.75 inches
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exterior:N/A
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item weight: 15.8 ounces
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special features:N/A
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item model number: 14316
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