The 12 Best Fuel Additives For Better Gas Mileage (2022 reviews)

fuel additives for better gas mileage
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Are you planning to buy fuel additive for better gas mileages, and are you confused about the options ? Your search ends here.

Our review process:

Our Top Picks:

Best Overall:
Buy: Lucas Oil Fuel Additive For Better Gas Mileage
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Best For Outboard Motor:
Buy: Stabil Fuel Additive For Better Gas Mileage
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Best For Unleaded Gas:
Buy: Star Brite Fuel Additive For Better Gas Mileage
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Best For Simple Use Kit:
Buy: Lucas Oil Fuel Treatment
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Best For Old Gas:
Buy: Stabil Fuel Izer
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Best For Lawn Tractor:
Buy: Star Brite Fuel Treatment
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Best For Regular Gas:
Buy: Rislone Fuel Additive For Better Gas Mileage
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Best For Engine Light:
Buy: Royal Purple Fuel Additive For Better Gas Mileage
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Best For Cylinder Heads:
Buy: Stp Fuel Additive For Better Gas Mileage
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Best For Better Performance:
Buy: Slick 50 Fuel Additive For Better Gas Mileage
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Best For Storage:
Buy: Boost Performance Products Fuel Additive For Better Gas Mileage
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Best For Boat:
Buy: Boost Performance Products Fuel Treatment
READ REVIEW

Best Overall: Lucas Oil Fuel Additive For Better Gas Mileage

Lucas Oil Fuel Additive For Better Gas Mileage
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Luca oil fuel additive for better gas mileage is the epitome of what a great additive should be. The Lucas Oil Fuel Additive For Better Gas Mileage is great for engine light, is great for synthetic oil and it is common. It gives your fuel system what it really needs. Moreover, it allows the engine to operate at maximum efficient.

The additive was used one time, is made for worth the money and it is for throttle response. Finally, the lucas oil fuel additive for better gas mileage is formulated for both gasoline and diesel engines, carbureted or fuel injected.

Most buyers agree that the additive is great for cars with out filters. And, a few also found that the additive will help stave off replacement injectors or maybe even delay a rebuild. In addition, they say that the additive has improved the responsiveness of the 3.0 liter v6. Obviously, this additive passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This is great for older high - mile vehicles.
  • This has increased mileage and it is large.
  • This is this one or one or both of them together.
  • This cleans everything out all at once with no problems or smoking.

Best For Outboard Motor: Stabil Fuel Additive For Better Gas Mileage

Stabil Fuel Additive For Better Gas Mileage
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Not everyone likes to purchase additives for their regular usage, but the Stabil Fuel Additive For Better Gas Mileage would be an anomoly. The stabil fuel additive for better gas mileage is perfect for specific gravity, is good for fuel pumps and it works as advertised. Use it with every fill up to help keep your engine running cleaner, leaner, smoother, and stronger than ever. And, it comes with fuel tanks, is designed for classic cars and it runs better.

The additive is made for quick delivery, is highly recommended and it is effective in ethanol. Most importantly, the stabil fuel additive for better gas mileage is great for lawn mowers and it has injectors.

Most buyers agree that the additive can be used in diesel - fueled engines and the predominant opinion is that it is not recommended for flex fuels/ethanol. Moreover, a few also found that the additive is good for keeping small engines running with ethanol added gas. Also, they also found that this, along with the fuel stabilizer they make, are terrific products.

Top Customer Quotes:
  • It is easy to add to the fuel tank.
  • Made in the u. s. a.
  • Keeps fuel fresh for up to 12 months.
  • This runs much better. To add to that, it provides great performance.

Best For Unleaded Gas: Star Brite Fuel Additive For Better Gas Mileage

Star Brite Fuel Additive For Better Gas Mileage
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The Star Brite Fuel Additive For Better Gas Mileage's feels more premium than its price would suggest. The star brite fuel additive for better gas mileage works fine, is good for chain saws and it is good for throttle response. Make sure this fits by entering your model number. Moreover, it is safe for all engines, will not harm oxygen sensors, and overdosing is not harmful.

Finally, the star brite fuel additive for better gas mileage is good for very good stuff and it is highly recommend.

Most buyers quickly discovered that the additive is great in your home with many benefits, especially if alcohol is an issue in your area. In addition, they also found that the additive cleans fuel systems and injectors. Also, a few say that this is by far the best fuel treatment for outboard ( marine environment in general ) motors using ethanol additive gasoline. In conclusion, buyers found this to be one of the best additives for daily purposes.

Top Customer Quotes:
  • This is great for engine light and it is worth the money.
  • This makes old gas good again.
  • This cleans the gas system and comes with a measuring cup.
  • This removes water, is great for shelf life and it works in all engines.

Best For Simple Use Kit: Lucas Oil Fuel Treatment

Lucas Oil Fuel Treatment
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For a low asking price, Lucas Oil Fuel Treatment has managed to overwhelm their customers by packing as many features as they could. The lucas oil fuel treatment works better and it has increased mpg. It gives your fuel system what it really needs. In addition, it is made for the bottom line, allows for a very good price and it is large.

The additive buys the gallon size, is very happy and it runs smoothly. Also, the additive is designed to increase power and fuel mileage and also lower exhaust emissions through a more complete combustion. Lastly, the lucas oil fuel treatment runs nice and it runs great.

Almost all customers found that the additive improves gas mileage by approx. And, a few say that the additive will withstand higher heat and pressures without igniting, allowing an engine to have more compression, build more power, and operate at higher temps inside the combustion chamber. Also, a few also found that the treatment only cleans the fuel injectors and lubricants the valves. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This cleans carbon deposits off engine parts.
  • This can swear by the second, but the idling is good.
  • This is good for some applications...not others.
  • This makes a world of difference.

Best For Old Gas: Stabil Fuel Izer

Stabil Fuel Izer
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Stabil makes beautiful and great additives with classic and smartly chosen materials. The Stabil Fuel Izer works better and it started right up. Have a generator or piece of equipment that you aren't sure when it'll be used again. And, the additive is designed for a great price, works as advertised and it can be used for easy pour bottle.

The additive is good for leaf blower and it is made with good instructions. Also, the additive is effective in all gasoline and ethanol blended fuels including e-10 through e-85. Most importantly, the stabil fuel izer is great for shelf life, is blue and it is easy to measure.

Almost all customers found that the additive was used for the past 2 winters and may motorized equipment start right up in the spring without a problem. Further, they strongly agree that the additive can be used in 2stroke premix with no problems. To sum up, buyers found this to be one of the best additives for daily purposes.

Top Customer Quotes:
  • This makes no difference and also has run fine ever since.
  • Run the engine for 5 minutes after adding product to treat the entire fuel system.
  • This is cheaper here than at the local auto parts store.
  • This works for the next year after every mower too.

Best For Lawn Tractor: Star Brite Fuel Treatment

Star Brite Fuel Treatment
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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate additive. The Star Brite Fuel Treatment is exactly that - it's a simple additive that hits all the right notes. The star brite fuel treatment is highly recommended and it runs more smoothly. Make sure this fits by entering your model number. In addition, the additive noticed the difference and it is great for fuel pump.

The additive is good for personal watercraft and it is great for fuel efficiency. In addition, the additive runs great and it has more power. Most importantly, the star brite fuel treatment has burns water, is great for a great price and it allows for better fuel economy.

Almost all buyers agree that the additive will stabilize your fuel for up to two years. And, they strongly agree that the additive will remove existing carbon deposits. Further, they strongly agree that the enzyme treatment is the best way to prevent the need for costly carburetor cleaning.

Top Customer Quotes:
  • This comes with fuel tanks, works in all engines and it runs better.
  • This will stabilize fuel, help improve combustibility and help keep engines/fuel systems clean.
  • This is no time to degrade.
  • This is an excellent additive for so - called e-10 fuels.

Best For Regular Gas: Rislone Fuel Additive For Better Gas Mileage

Rislone Fuel Additive For Better Gas Mileage
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If you often find yourself confused about appropriate and satisfactory additive,s Rislone Fuel Additive For Better Gas Mileage is your solution. The rislone fuel additivefor better gas mileage is designed to work with all diesel engines, including ultra low sulfur diesel and bio diesel fuel. Make sure this fits by entering your model number. The best all in one gasoline fuel additive money can buy.

Most importantly, the rislone fuel additive for bettergas mileage is equal to a bottle of regular injector & complete fuel system cleaner, upper cylinder lubricant, fuel stabilizer and conditioner, dry gas, gas treatment and octane booster.

Almost all customers found that the additive is good as redline, or lubeguard, or gumout. Moreover, a few say that the additive is best with high octane fuel and every 5k miles. Overall, the tone of buyers is very positive and we believe that the additive suits the purpose.

Top Customer Quotes:
  • It runs smooth and it is built with good products.
  • I noticed the difference and it is with great item.
  • This is one powerful bottle and also best for performance cars too.
  • This works as described, is made with fuel tanks and it is very happy.

Best For Engine Light: Royal Purple Fuel Additive For Better Gas Mileage

Royal Purple Fuel Additive For Better Gas Mileage
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Next on the list, we've got yet another additive that manages to win our hearts. It's the Royal Purple Fuel Additive For Better Gas Mileage and it's widely considered as one of the most convenient additives you can buy. The royal purple fueladditive forbetter gas mileage is common and it is a great item. Make sure this fits by entering your model number. Further, this is improved fuel economy, enhanced power and performance, reduced emissions, smoother idle, and quicker / easier starts.

The additive is specially formulated to solve problems with today’s direct injection engines, but can be used with any type of fuel injection. Also, the additive is for throttle response and it is easy to open. Most importantly, the royal purple fuel additive for better gasmileage is the only fuel injector cleaner that also stabilizes ethanol, which chemically breaks down to cause harmful effects on an engine.

Most customers quickly discovered that the additive has a higher compression ratio and cranks out 200 horsepower in a 2 liter engine. Also, a few strongly agree that the additive is after a thorough TB cleaning and new fuel filter. In addition, they strongly agree that the additive is sold as a fuel injector cleaner.

Top Customer Quotes:
  • This, redlines si-1 complete fuel system cleaner and, of course, techron by Chevron.
  • This makes a difference and also works on motorcycles as well.
  • This is made with lower engine vibration, has improved power and it starts right up.
  • But better than dropping $50 at ford every 30k for cleaner.

Best For Cylinder Heads: Stp Fuel Additive For Better Gas Mileage

Stp Fuel Additive For Better Gas Mileage
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The strong fuel additive for better gas mileage is capable of outshining several other additives featured in this list in overall features in its price range. The strong fuel additivefor better gas mileage is designed for a great price and it is for throttle response. Stp super concentrated fuel injector cleaner contains concentrated detergents that help dissolve and remove harmful carbon, gum, and varnish deposits on fuel injectors. In addition, it is made with jet fuel, a high-quality carrier of active ingredients.

The additive is designed for easy install, runs more smoothly and it is best for a good deal. Above all, the strong fueladditive for better gas mileage filled the tank and it is very happy.

Most buyers agree that the additive can also help keep clean. In addition, a few say that the additive is rather intermittent, but this stopped it for the time being. Also, they also found that the additive is easy to use when filling up the car at the gas pump. Overall, for almost all customers, it was just what they wanted.

Top Customer Quotes:
  • This has improved performance and it is great for fuel efficiency.
  • This can be used on any gasoline - run vehicle.
  • This improves gas mileage, plus it comes with two though.
  • This can only dissolve so much buildup.

Best For Better Performance: Slick 50 Fuel Additive For Better Gas Mileage

Slick 50 Fuel Additive For Better Gas Mileage
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If you often find yourself scrambling for appropriate and satisfactory additive, Slick 50 Fuel Additive For Better Gas Mileage should be your first option for buying. The slick 50 fuel additive for bettergas mileage is great for cylinder heads and it is made forbetter performance. Make sure this fits by entering your model number. Also, this restores lost engine performance and cleans up harmful deposits and prevents future accumulation.

Finally, the slick 50 fuel additive for better gasmileage is made to be worth the money and it is very happy.

Almost all buyers found that the additive is great for your older car. Moreover, a few also found that the additive definitely boosted performance. In short, the tone of buyers is very positive and we believe that the additive suits the purpose.

Top Customer Quotes:
  • This protects against power robbing friction, heat and wear.
  • Restores gas mileage and improves combustion.
  • This restores lost engine performance.
  • Cleans deposits, piston tops, cylinder heads, intake ports, intake valves.

Best For Storage: Boost Performance Products Fuel Additive For Better Gas Mileage

Boost Performance Products Fuel Additive For Better Gas Mileage
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The Boost Performance Products Fuel Additive For Better Gas Mileage's high-end materials makes sure that it ages well with use. The boost performance products fuel additive for better gas mileage is a super concentrate combustion improver, specially formulated to maximize both performance and fuel economy. Feel the power and smoothness of your engine as cleanboost maxx begins to go to work destroying carbon deposits, removing harmful water accumulation, blowing out slagging and cold-end corrosion. And, the additive is best for customer service, works as advertised and it is good for throttle response.

The additive reduces fuel consumption by 3 to 5% across a wide range of fossil fuels. Most importantly, the boost performance products fuel additive for better gas mileage is large and it is bought new.

Most buyers quickly discovered that the additive works in all vehicles and engines, gasoline (petrol) and diesel. Moreover, a few say that the additive is easy to add to fuel with self-regulated measurement. Also, they also found that the additive works with older beat - up cars or something. To sum up, many customers have used the boost performance products fuel additives for better gas mileage for more than a few months without any complaints, and it shows no sign of giving up.

Top Customer Quotes:
  • This is the best one for your money and power by far.
  • This is perfect for street or off-road bikes.
  • This can be used on almost any car, diesel or gas.

Best For Boat: Boost Performance Products Fuel Treatment

Boost Performance Products Fuel Treatment
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Boost Performance Products has been making great additives for years, thanks to a combination of clever design and appropriate materials. The Boost Performance Products Fuel Treatment comes with a great item and it has a power boost. Treating your fuel with cleanboost maxx includes better engine performance, extended equipment life and reduced maintenance costs. Further, it is very happy, is made with fuel tanks and it is for throttle response.

The additive is a super concentrate combustion improver, specially formulated to maximize both performance and fuel economy. Finally, the boost performance products fuel treatment reduces fuel consumption by 3 to 5% across a wide range of fossil fuels.

Almost all customers opine that the additive goes 0-60 in six seconds. Further, a few say that the additive is safe to use in all 2-stroke & 4-stroke engines running gasoline or diesel fuel. In conclusion, buyers found this to be one of the best additives for daily purposes.

Top Customer Quotes:
  • This comes with excellent customer service, is large and it is good for fast delivery.
  • This is the real deal, folks.
  • Delivers what they promise.