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

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Best Overall: Buy: Star Brite Octane Fuel Additive READ REVIEW

Best With Fuel Mileage: Buy: Lucas Oil Octane Fuel Additive READ REVIEW

Best For Old Gas: Buy: Sea Foam Octane Fuel Additive READ REVIEW

Best For Diesel: Buy: Rislone Octane Fuel Additive READ REVIEW

Best For Synthetic Oil: Buy: Royal Purple Octane Fuel Additive READ REVIEW

Best For Snowmobile: Buy: Torco Octane Fuel Additive READ REVIEW

Best For Time: Buy: Racegas Octane Fuel Additive READ REVIEW

Best For Fuel Economy: Buy: Hapco Products Co Octane Fuel Additive READ REVIEW

Best For Modified Engines: Buy: Race Gas Octane Fuel Additive READ REVIEW

Best For High Quality: Buy: Fuel Ox Octane Fuel Additive READ REVIEW

Best Overall: Star Brite Octane Fuel Additive

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Here, we present an additive that manages to win our hearts. It's the Star Brite Octane Fuel Additive and it's widely considered as one of the the greatest additives you can buy. The star brite octane fuel additive is designed for more power and I have given it a try. It keeps working to clean your fuel delivery system, so your engines start easily and run strong. 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 is great for fuel efficiency and it is worth the money. Moreover, this can stabilize fuel for up to 2 years and can help rejuvenate old, sub-spec fuel. Above all, the star brite octane fuel additive allows for better fuel economy and it runs smoothly.

Most buyers opine that the additive can not believe how good readings are. Moreover, they strongly agree that the additive is used to have to let it warm up or it will die a few times. And, they strongly agree that the additive is perfect for winterizing the fuel tank on a boat. Obviously, this additive passed the test and had very satisfied buyers eager to share their experience.

• This is cost effective and it is great for snow blower.
• This is effective, is clear and it filled the tank.
• This is one of the best to deal with the moon shine or ethanol.
• This has worked like a charm with no adverse effects on performance.

Best With Fuel Mileage: Lucas Oil Octane Fuel Additive

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The Lucas Oil Octane Fuel Additive is capable of outshining several other additives featured in this list in overall features for the price point. The lucas oil octane fuel additive is made for good stuff and it is highly recommend. It gives your fuel system what it really needs. Further, the additive is formulated for both gasoline and diesel engines, carbureted or fuel injected.

The additive increases power and it saves money. In addition, it has been used once, works better and it runs better. Finally, the luca oil octane fuel 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 opine that the additive has improved the responsiveness of the 3.0 liter v6. In addition, they strongly agree that the additive improves performance and increases gas mileage a bit.

• This works for engine light, is great for a great price and it has injectors.
• This is also very noticeable while accelerating.
• This is great for cars with out filters.
• This works well though, plus it takes away the knocking.

Best For Old Gas: Sea Foam Octane Fuel Additive

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Next on the list, we've got yet another additive that manages to win our hearts. It's the Sea Foam Octane Fuel Additive and it's widely considered as one of the most convenient additives you can buy. The sea foam octane fuel additive is used for gasoline engines and it works for lawn mowers. It does not have harsh detergent or abrasive chemicals that can harm your engine. Further, the additive is designed for a great price, does the job and it is very happy.

The additive is effective, works well for snow blower and it runs smoothly. Above all, the sea foam octane fuel additive can help with carbon deposits and it works as advertised.

Most buyers agree that the additive is great for making deliveries on time. In addition, they say that the additive is used to treat oil and gas per manufacturing instructions. Furthermore, a few also found that the " top engine " cleaner version is sprayed directly into the air intake. Overall, many customers have used the sea foam octane fuel additive for more than a few months without any problems, and it shows no sign of giving up.

• This is a good fuel stabilizer for winter storage.
• This cleans the carburetor or injectures as you run it.
• This can be used in two strokes also according to the instructions on the can.
• These make one called seafoam marine pro made specifically for that.

Best For Diesel: Rislone Octane Fuel Additive

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Next on the list, we've got yet another additive that manages to win our hearts. It's the Rislone Octane Fuel Additive and it's widely considered as one of the most convenient additives you can buy. The rislone octane fuel additive can see improvement in fuel economy, is used for gasoline engines and it can ask for good quality. Remember, your car is what it eats. The best all in one gasoline fuel additive money can buy.

The additive is good for fuel pumps and it is made for good stuff. Above all, the rislone octane fueladditive saves gas and it runs smoothly.

Most customers quickly discovered that the additive cleans the fuel injectors but lubricates the upper cylinder walls. Moreover, they also found that the additive works with all regular unleaded, premium, oxygenated, and e10 e15 e85 ethanol containing flex fuels. In conclusion, for almost all customers, it was the most suitable.

• This is best with high octanefuel and every 5k miles.
• This has increased power, works as described and it is easy to use.
• This runs smoother and it can buy a lawn mower.
• This is one powerful bottle and also best for performance cars too.

Best For Synthetic Oil: Royal Purple Octane Fuel Additive

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Royal Purple has been making great additives for years, thanks to a combination of clever design and appropriate materials. The Royal Purple Octane Fuel Additive improved fuel economy, enhanced power and performance, reduced emissions, smoother idle, and quicker / easier starts. Make sure this fits by entering your model number. And, this is easy to use and it allows for better fuel economy.

The additive is designed for more power and it has miles per gallon. Above all, the royal purple octane fuel additive has improved performance, can help with carbon deposits and it works as intended.

Most buyers opine that the additive can be used in any type of engine. And, they also found that the additive can restore power by cleaning injectors and keeping them in working order. Further, they say that the additive makes a difference and also works on motorcycles as well. Overall, for most customers, the additive was most suitable.

• This is great stuff for engine treatment.
• This is made for good stuff and it improves performance.
• This looks better than Techron and is similar to liqui moly jectron.
• This is after a thorough TB cleaning and a new fuel filter.

Best For Snowmobile: Torco Octane Fuel Additive

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Compared with other additives in this category, the Torco Octane Fuel Additive has a convenient design. Further, this will not harm sensitive o2 sensors or catalytic converters. Make sure this fits by entering your model number. Most importantly, the torco octane fuel additive is effective, works as described and it runs great.

Most buyers quickly discovered that the additive can be used in anything that uses unleaded gasoline. And, they say that the additive is for vehicles that need high octane. In conclusion, most customers find the additive is functionally comfortable and no one questions it.

• This is designed to run on pure 100oct race gas.
• This is the real deal, works very well, especially on turbo cars.
• Delivers what they promise.

Best For Time: Racegas Octane Fuel Additive

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We would, of course, be remiss if we didn't mention Racegas Octane Fuel Additive for daily use. And, it is perfect for more power and it makes sure. These products use exceptionally high order fulfillment rates, breadth of available products and these are also a complete line of heavy-duty shop products that will bring you years of reliable performance. Finally, the racegas octane fuel additive is good for country of origin and it has increased octane.

Most customers found that the additive is not a cure all its high octane fuel for high compression high preformance motors. Further, a few strongly agree that the additive pulls spark on the same fuel without race gas concentrate added. Overall, at the price, they believe that they got a steal of a deal with it.

• This does have some characteristics, acting as a fuel stabilizer as well.
• This does not negatively impact spark energy or propagation.
• Package dimensions :8.382 cm l x 8.382 cm w x 22.225 cm h.
• This is the best fueladditive for real octane improvement.

Best For Fuel Economy: Hapco Products Co Octane Fuel Additive

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The Hapco Products Co Octane Fuel Additive is capable of outshining several other additives featured in this list in overall features in its price range. The hapco products co octanefuel additive is great to use in all gasoline, diesel and marine engines. Make sure this fits by entering your model number. And, the additive runs great and it helps stop power.

Above all, the hapco products co octane fuel additive provides maximum lubrication to any fuel system.

Almost all buyers quickly discovered that the additive provides the lead additives for engines that need leaded gas. Moreover, they strongly agree that the additive is not recommended to use lead additives. In conclusion, at the price, they believe that they got a steal of a deal with it.

• Safe for any type of fuel system.
• Use to quickly prevent valve recession and wear.
• This is good for fuel pump and it makes sure.
• This is made for engines that used to burn leaded gas.

Best For Modified Engines: Race Gas Octane Fuel Additive

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The Race Gas Octane Fuel Additive should be able to handle its purpose and duties with ease. In addition, the additive ran great, sounds different and it is good for the bottom line. Make sure this fits by entering your model number. Most importantly, the race gas octane fuel additive works with part number, is perfect for more power and it makes sure.

Most customers quickly discovered that the additive is great for weekend racing. In addition, they strongly agree that the additive is designed for modified engines. Therefore, customers were very happy to recommend it to friends and families.

• Package dimension : 8.382 cms l x 8.382 cms w x 21.844 cms h.
• This can be used in unleaded gasoline to increase the octane rating.
• This will help with ignition issues, but your best bet is better fuel.

Best For High Quality: Fuel Ox Octane Fuel Additive

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We would, of course, be remiss if we didn't mention Fuel Ox Octane Fuel Additive for regular usage. The fuel ox octane fuel additive works for lawn mowers and it has more power. It will separate the water suspended in gas or diesel and filter out through your boat's or watercraft's racors, separators, or filters. These military grade additives are highly concentrated and improve combustion and overall engine performance.

The additive starts better, removes water and it works better. Moreover, this is not your average fuel treatment. Most importantly, the fuel ox octane fuel additive is designed to be soluble in any fuel and drastically improve the efficiency of the fuel systems that are treated while inhibiting common fuel related issues.

Almost all customers found that the additive works in 2 or 4 stroke engines. Moreover, a few say that the additive is used to mean removing and a full cleaning of the carb. In conclusion, many buyers have used the additive for more than a few months without letup, and it shows no sign of giving up.

• Manufacturer says: over time, our fuel treatments were modified for commercial applications.
• This can also degrade fuel and cause costly repairs and maintenance to the engine.
• The Manufacturer says: Our advanced formulas were originally developed for extraordinarily high - intensity applications.
• This protects against ethanol issues, corrosion, and degraded fuel in both gas and diesel.