The 12 Best Fuel Injector Additives (2022 reviews)

fuel injector additives
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Are you planning to buy fuel injector additives, and are you confused about the options ? Your search ends here.

Our review process:

Our Top Picks:

Best Overall:
Buy: Lucas Oil Fuel Injector Additive
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Best For Outboard Motor:
Buy: Yamaha Fuel Injector Additive
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Best For Lawn Tractor:
Buy: Star Brite Fuel Injector Additive
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Best For Unleaded Gas:
Buy: Stabil Fuel Injector Additive
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Best For Old Gas:
Buy: Iso-Heet Fuel Injector Additive
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Best For Older Engine:
Buy: Liqui Moly Fuel Injector Additive
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Best For Regular Gas:
Buy: Stp Fuel Injector Additive
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Best For Boat:
Buy: Rislone Fuel Injector Additive
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Best For Engine Light:
Buy: Royal Purple Fuel Injector Additive
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Best For Snowblower:
Buy: Lucas Fuel Injector Additive
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Best For Right Size:
Buy: Red Line Fuel Injector Additive
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Best For Cleaning Fuel Injectors:
Buy: Jhsport Fuel Injector Additive
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Best Overall: Lucas Oil Fuel Injector Additive

Lucas Oil Fuel Injector Additive
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If you want nothing short of the best possible additive for your daily purpose, this Lucas Oil Fuel Injector Additive is certainly a worthy investment. The lucas oil fuel injector additive is good for country of origin, has increased mileage and it is suitable for lawn mowers. It gives your fuel system what it really needs. In addition, it works fine and I noticed the difference.

Finally, the lucas oil fuel injector additive can be used in vehicles that require leaded fuel because it actually replaces the benefits of lead in gasoline without causing harmful emissions.

Almost all buyers agree that the additive is great for cars with out filters. And, a few say that the additive is great for older high - mile vehicles. Moreover, a few strongly agree that the additive is a good stabilizer for small engines that do not run a lot and sit. In short, many have used the additive for more than a few months without letup, and it shows no sign of giving up.

Top Customer Quotes:
  • This will help stave off replacement injectors or maybe even delay a rebuilding.
  • This is also very noticeable while accelerating.
  • This is formulated for both gasoline and diesel engines, carbureted or fuel - injected.
  • This can be used in conjunction with lucas deep clean.

Best For Outboard Motor: Yamaha Fuel Injector Additive

Yamaha Fuel Injector Additive
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The features department is where Yamaha Fuel Injector Additive truly manages to shine. The yamaha fuel injector additive is made for good stuff, is with great items and it can ask for good quality. Use with yama lube fuel stabilizer and conditioner plus to prevent any harmful effects. These deposits are caused by poor fuel quality.

The additive now has excellent compression and it allows for better fuel economy. In addition, it is designed to worth every penny, is great for lawn mowers and it is good for throttle response. Lastly, the yamaha fuel injector additive has better throttle response, is highly recommended and it starts right up.

Almost all buyers opine that the additive is 1oz per 10 gallons of gasoline...jyst read the back of the bottle, it will tell you. Further, they also found that the additives are as good as everyone says. And, they strongly agree that the cleaner the engine and lubricated with additives, the better they run.

Top Customer Quotes:
  • This is one of the best products out there.
  • This is designed for both 2 and 4 stroke engines.
  • This has been running for 18 years.
  • These are before the slippage and the engine sounds great.

Best For Lawn Tractor: Star Brite Fuel Injector Additive

Star Brite Fuel Injector Additive
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Next on the list, we've got yet another additive that manages to win our hearts. It's the Star Brite Fuel Injector Additive and it's widely considered as the additive that has the most suitable features. The star brite fuel injector additive can be used in all gas outboards, inboards, cars, trucks, motorcycles, atvs, snowmobiles, small engines, outdoor power equipment including pre-mix fuel engines. Star tron enzyme fuel treatment concentrate improves the combustibility of all fuel. This gasoline stabilizer helps improve mpg, eliminate black soot and exhaust stains, reduce emissions, remove carbon build - up, and eliminate and prevent ethanol fuel problems for maximum performance.

The additive helps prevent phase separation and it starts right up. Most importantly, the star brite fuel injector additive can stabilize fuel for up to 2 years and can help rejuvenate old, sub-spec fuel.

Almost all customers found that the additive can be used in fuel stored over a year and the fuel is perfectly good to use. In addition, they strongly agree that the additive is a great treatment for gas in vehicles, RV'S and generators. Furthermore, a few also found that the additive is best for treating ethanol gasoline. So, customers were very happy to recommend it to friends and would-be buyers.

Top Customer Quotes:
  • I can not believe how good readings are.
  • This is made for good stuff and it is designed for max performance.
  • This is great for older automotive engines that aren't updated for ethanol.
  • It is hard to cleanly pour and measure.

Best For Unleaded Gas: Stabil Fuel Injector Additive

Stabil Fuel Injector Additive
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stabil line of additives comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Stabil Fuel Injector Additive is used for specific gravity and it is clean. The manufacturer says: And if you have learned one thing along the way, it is this. Further, it is perfect for classic cars and it is ideal for snow blower.ss.

Lastly, the stabil fuel injector additive is highly recommended and it has miles per gallon.

Most buyers found that the additive is running much better to add to that, provides great performance. Moreover, a few also found that the additive can be used in diesel - fueled engines and the predominant opinion is that it is not recommended for flex fuels/ethanol. In addition, a few also found that this, along with the fuel stabilizer they make, are terrific products.

Top Customer Quotes:
  • Effective in ethanol and non-ethanol blended fuels.
  • Prevents corrosion caused by ethanol blended fuels.
  • This is best with an average 2 mile per gallon increase in mileage.
  • This is good for some of the car parts.

Best For Old Gas: Iso-Heet Fuel Injector Additive

Iso-Heet Fuel Injector Additive
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The best part: Iso-Heet Fuel Injector Additive costs comparatively low and it is available to ship in 24 hours. The iso-heet fuel injector additive prevents rust, is good for fuel pumps and it is condensation in warm. weather. Gold eagle iso-heet premium fuel-line antifreeze, water remover & injector cleaner is the premium gas-line antifreeze that absorbs up to 5 times the water of regular gas dryers. Also, the additive is made for good stuff and it runs great.

The additive absorbs water, Go ahead and it is industrial. Also, this works with diesel fuels, is good for shelf life and it is great for cleaning fuel injectors. Finally, the iso-heet fuel injector additive filled the tank and it works well for snow blower.ss.

Most buyers agree that the additives made in the USA by the "stabil" fuel stabilizer people. And, a few say that the additive is best for removing water from gas tank, highly rated, especially in winter.

Top Customer Quotes:
  • This is pure alcohol and you can not run on only it.
  • This comes in an easy - pour 12 ounce bottle.
  • This works for cars with capless gas tanks.
  • There has been a deep freeze this winter.

Best For Older Engine: Liqui Moly Fuel Injector Additive

Liqui Moly Fuel Injector Additive
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Not everyone likes to purchase additives for their daily usage, but the Liqui Moly Fuel Injector Additive would be an anomoly. The liqui moly fuel injector additive comes with over 4, 000 products relating to motor and transmission oils, fuel and oil additives, vehicle care, chemical repair aids as well as service products, adhesives and sealants, Liqui Moly offers a globally unique range of absolute top quality. The Manufacturer says: An impressive result that reflects both our exceptional quality and our continuity. Also, this is highly recommended and it has more powerful.

Finally, the liqui moly fuel injectoradditive is made from raw material deliveries, to production, right through to shipment.

Almost all customers opine that the additive allows proper mixing and improves engine efficiency. And, they also found that the additive works well as a full fuel system cleaner. In addition, a few say that the additive can be used as a problem solver in case of fuel system relarted issues, too.

Top Customer Quotes:
  • This can see improvement in fuel economy and it has miles per gallon.
  • This is suitable for use in all 4-stroke gasoline engines, with or without turbochargers.
  • This treatment uses jectron regularly to keep clean and protect the gas system.
  • This is used to clean and maintain the fuel systems of injected or carbureted gasoline engines.

Best For Regular Gas: Stp Fuel Injector Additive

Stp Fuel Injector Additive
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We would, of course, be remiss if we didn't mention the fuelinjector additive for daily purpose. The Stp Fuel Injector Additive runs smooth and it starts easier. Helps to prevent hard stops, lost acceleration and rough idling and helps save gas. Also, this has improved performance and it runs more smoothly.

Above all, the stp fuel injector additive would be perfect with excellent quality, is clear and it fills the tank.

Most customers quickly discovered that the additive is easy to use when filling up the car at the gas pump. Moreover, they strongly agree that the additive is rather intermittent, but this stopped it for the time being. Consequently, buyers were very happy to recommend it to friends and would-be buyers.

Top Customer Quotes:
  • This can also help keep clean.
  • This can only dissolve so much buildup.
  • It is very happy and it has miles per gallon.
  • Fuel additive contains concentrated detergents for effective car care.

Best For Boat: Rislone Fuel Injector Additive

Rislone Fuel Injector Additive
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The best part: Rislone Fuel Injector Additive costs comparatively low and it is available to ship in 24 hours. The rislone fuel injector additive has increased power, comes with fuel tanks and I noticed the difference. The manufacturer says: With over 100 years of experience under our belt, you can trust our revolutionary performance products will give your car a fighting chance at a long, healthy life. The best all in one gasoline fuel additive money can buy.

The additive is made with good products and it is worth the price. Most importantly, the rislone fuel injector additive 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 buyers found that the additive works with all regular unleaded, premium, oxygenated, and e10 e15 e85 ethanol containing flex fuels. Also, they say that the additives are as good as redline, or lubeguard, or gumout. Further, they say that the additive is one powerful bottle and also best for performance cars too. With no doubts, this additive passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This works with all unleaded, oxygenated, and e10 e15 e85 ethanol containing fuels.
  • This works very well and it comes with part number.
  • This is runs smooth and it runs smoother.
  • This is best with high octane fuel and every 5k miles.

Best For Engine Light: Royal Purple Fuel Injector Additive

Royal Purple Fuel Injector Additive
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If you are searching for a popular additive for your regular usage, you cannot go wrong with the Royal Purple Fuel Injector Additive. The royal purple fuel injector additive works as intended and it has been used one time. Make sure this fits by entering your model number. Further, it works very well and it allows for better fuel economy.

Above all, the royal purple fuel injectoradditive comes with a great item and it is worth the money.

Most buyers opine that the additive comes after a thorough TB cleaning and new fuel filter. Moreover, a few say that the additive can restore power by cleaning injectors and keeping them in working order. Also, they say that the additive is designed to be poured into a tank.

Top Customer Quotes:
  • But better than dropping $50 at ford every 30k for cleaner.
  • This is common, can help with carbon deposits and it stays there longer.
  • This is used for both gs and diesel, others are specific.
  • This works with modern ethanol fuels.

Best For Snowblower: Lucas Fuel Injector Additive

Lucas Fuel Injector Additive
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Compared with other additives in this category, the Lucas Fuel Injector Additive has a convenient design. The lucas fuelinjector additive is designed for good stuff, is happy with the results and it is for throttle response. Make sure this fits by entering your model number. In addition, this is cost effective and it has increased mpg.

The additive saves money and it can be bought for good value. Lastly, the lucas fuel injector additive can be used in vehicles that require leaded fuel because it actually replaces the benefits of lead in gasoline without causing harmful emissions.

Almost all customers found that the additive is great for ethanol fuel. And, a few strongly agree that the additive is somewhat under powered and doesn't achieve the mpg noted on the epa sticker. In addition, they also found that the additive makes everything run quite and escalade and chevy diesel have more power. To sum up, many buyers have used the lucas fuel injector additive for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:
  • This can see improvement in fuel economy and it is good for the bottom line.
  • Cleans and lubricates the fuel system.
  • Sold in case packs of 4.
  • This is great for a great price and it is worth the money.

Best For Right Size: Red Line Fuel Injector Additive

Red Line Fuel Injector Additive
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The Red Line Fuel Injector Additive is suitable and reliable and fits well with your daily purpose. The red line fuel injector additive is not for sale on Catalina island. Make sure this fits by entering your model number. And, it runs smooth and it is very happy.

The additive is perfect for the right size, has injectors and it is easy to open. Further, the additive has reduced smoking, works with diesel fuels and it is highly recommend. Most importantly, the red line fuel injector additive is made for worth the money and it has miles per gallon.

Most customers agree that the additive has been used for many years. Further, they say that the additive is designed for the low-sulfur fuels of today. Further, they strongly agree that the additive keeps the injectors clean. Overall, the tone of buyers is very positive and we believe that the additive suits the purpose.

Top Customer Quotes:
  • This improves power and fuel efficiency and works to stabilize fuel.
  • This fits nicely in the fuel fill hole without spilling.
  • Lubricates injectors, pumps, and cylinder walls as well as prevent rusting.
  • This item is not for sale on Catalina island.

Best For Cleaning Fuel Injectors: Jhsport Fuel Injector Additive

Jhsport Fuel Injector Additive
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If you are searching for a suitable additive for your daily purpose, Jhsport Fuel Injector Additive is the natural choice. Also, the additive is great for cleaning fuel injectors and it would be perfect for fast shipping. Make sure this fits by entering your model number. Most importantly, the jhsport fuel injector additive provides superior deposit control.

To sum up, buyers found this to be one of the best additives for daily purposes.

Why We Like This:
  • Lot of satisfied buyers.
  • Good brand reputation.