The Best Fuel Additives

Looking for the best Fuel Additives?

Discover now our comparison of the best Fuel Additives. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Fuel Additives are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Fuel Additives in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

SaleNo. 1

Lucas Oil 10003 Fuel Treatment - 1 Quart

The world’s #1 fuel additive for both gasoline and diesel engines
A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
Improves fuel economy by burning excess exhaust emissions
Increases power and acceleration by improving fuel flow and reducing deposit buildup
Neutralizes sulfur and other harmful contaminants present in the fuel system
Increases the life of pumps and injectors
Prevents rust and corrosion, prolonging the life of engine and fuel system components
Complies with federal low sulfur content requirements for diesel motor vehicles and non-road, locomotive and marine diesel equipment engines
Safely replaces the need for lead in older engines without causing harmful effects

No. 2

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Fuel Additive that Protects Fuel System, Gas Stabilizer for Fuel Storage, 32 oz.

Replaces: Cub Cadet 22216, 22287
Corrosion protection to help prevent and protect against problems caused by ethanol-blended fuels
Used in 2-cycle and 4-cycle engines
32 oz. treats 80 gallons of fuel; 1 oz. treats 2 1/2 gallons of fuel
Keeps stored fuel fresh; Prevents varnish and gum deposits

No. 3

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

Includes AR6500 Diesel Treatment (40 oz)
Includes AR6400-D Diesel Fuel System Cleaner
Restore key fuel system components - injectors, turbo & dpf
Boost cetane, improve performance and MPG
AR6400-D is not the remedy for HEUI injector stiction. Please use AR9100 Friction Modifier instead

No. 4

Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
Reduces: rough idle, engine surge, hesitation, and spark plus fouling
Improves: cold start performance, and fuel stability for up to one year
Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)

No. 5

Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce

DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems
PERFORM AND PROTECT: Fuel additive cleans injectors, carburetors, valve and combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents
EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
One 15 Ounce Bottle

SaleNo. 6

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

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
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
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
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
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!

No. 7

Archoil AR6500 Diesel Treatment (40.6oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Includes (2) x AR6500 Diesel Treatment - Treat up to 800 gallons
Formulated to address issues with modern diesel fuels
Incorporates Archoil's proven combustion modifier technology and a strong cetane boost to increase power and response
Cleans, lubricates and protects your fuel system (including HPCR systems)

No. 8

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

Restores fuel economy
Stabilizes ethanol
Maximizes horsepower
Improves responsiveness
For use in both gasoline and diesel engines

No. 9

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

ALL-ROUND ENGINE SOLUTION - Works in all engines and all fuels, making it the ideal fuel treatment and stabilizer for any vehicle or gas powered tool
ETHANOL PROBLEM SOLVER - Prevents and cures most ethanol-related issues, including poor performance and decreased fuel economy
OLD FUEL REVITALIZER - Stabilizes fuel up to 2 years and can help rejuvenate old, sub-spec fuel, even after months of inactivity
FUEL ECONOMY MAXIMIZER - Removes and prevents gum, carbon deposits, and varnish build-up, resulting in improved fuel economy
WATER BUILD-UP PREVENTION - Disperses water throughout fuel as submicron-sized droplets that are safely eliminated while the engine operates
EMISSION REDUCER - Reduces smoke and emissions, a symptom of poor combustion which wastes gas and is harmful to our health & planet
EASY TO USE - Unlike other stabilizers, Star Tron can be mixed with any other fuel additive without worry of over dosing - No need for exact fuel amount or expensive measuring bottles

SaleNo. 10

STA-BIL In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 32 Fl. Oz.

FUEL SYSTEM CLEANER: Cleanses the entire fuel system, including fuel injectors, lines, & fuel pumps, this formula removes water, gum, & varnish, ensuring optimal performance & longevity of your fuel system while preventing corrosion.
CORROSION PROTECTION: Industry-leading rust and corrosion protection for all internal fuel system parts.
MPG BOOSTER: Designed to optimize fuel performance which contributes to enhanced gas mileage & improved engine power. This advanced formula cleans & protects the fuel system, allowing for efficient combustion & prolonged engine life
DIRECTIONS: New name, same formula as our 360* Protection. Pour directly into fuel tank prior to fill up. Use 1 oz for every 5 gallons of fuel.
YEAR-ROUND PROTECTION: Pair STA-BIL In-Season Protection with STA-BIL Storage, providing a complete solution for both in-season operation & storage needs during the winter ensuring that your equipment remains in peak condition year-round.
FUEL STABILIZER: Stabilizes fuel in-season for gasoline sitting in collector cars, gas cans, etc. For specific storage needs, use our storage fuel stabilizer product.

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Last update on 2025-06-07 / Affiliate links / Images from Amazon Product Advertising API

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