Best Octane Booster Reviews – What You Need to Know in 2018

Need more speed for your car? We review the best octane boosters available online today.

All of us want to go a little faster when we’re in our car, and there’s no better way to do this than by using an octane booster. These boosters have been in use for quite some time now, but the quality has improved a great deal and now works on a wide range of cars.

These additives have a special mixture so it improves performance, and they also improve other aspects like fuel efficiency and emission. But finding the best octane booster requires understanding of how they work, what to look for and knowing what products are available.

Best Octane Booster - Our Top Picks

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Reviews of the Best Octane Booster

Torco Accelerator 32oz the Best Fuel Additive

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The Torco Accelerator allows you to customize your blends and increase octane up to 105. The Torco burns fuel more effectively and maximizes your engine’s capability, and unlike other octane boosters, the effect doesn’t get impeded even if you’re driving under different conditions.

The difference in speed is substantial, and idling is smoother and be more pronounced. You will also notice the difference in the exhaust smell, and you will sense a stronger pull while you’re on full throttle, which allows the Torco to live up its lofty name.

Klotz Octane Booster (Gal)

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The Klotz Octane Booster contains tetraethyl lead substitute that has been developed specifically to boost the octane number by at least 10. With regular use it improves engine performance, prevents low octane pinging and engine detonation. This octane booster also acts as a deterrent to spark knock.

The Klotz changes the gasoline flash point and burn speed so the combustion chamber is more stable and maximizes your engine’s power and performance. By providing stability and lubrication you’ll be able to unleash your car’s full speed potential. In addition the Klotz also cuts back vehicle emission.

Lucas 10026 Octane Boost. 15 oz.

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The Lucas 10026 offers up to three times the performance enhancement that other octane boosters provide. Tested extensively, the 10026 is safe for catalytic converters, oxygen sensors and turbos. With regular use it also prevents knocks and increases the MPG in engines.

The 10026 doesn’t just enhance car performance but also prevents rough idling. Designed for carbureted and fuel injected engines, the Lucas 10026 leads to more efficient fuel burning and reduced emissions, so you’re driving cleaner too.

104+ 10406 Octane Boost, 16 Fl. oz.

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The Gold Eagle 104+ has been around since the 1970s and it’s still one of the best in boosting power and improving gas mileage. The formula is 100% safe for oxygen sensors and catalytic converters, and the Gold Eagle also prevents pings and knocks without compromising speed.

It is also a combination injection cleaner and octane booster in one: as it cleans the fuel injector it stimulates the accelerator to give your car a burst of speed. Your engine’s horsepower is restored. All it takes is just one treatment and it boosts performance, reduces gas mileage and knocks.

Gumout 800001706 Octane Booster, 10 oz.

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The Gumout 800001706 propels your engine’s octane to the next level, providing the proper combustion, and this brings about a significant increase in your octane rating. Unlike other octane boosters the Gumout doesn’t damage the oxygen sensors and is compatible with super and turbo charged vehicles.

Gumout isn’t just for new, flashy sports cars but even older models as well. With regular use it ensures the engine is running on full throttle. With this you’ll get full mileage out of the tank so there are no knocks or sputter. Customer reviews and feedback also say the Gumout provides long term benefits in terms of mileage.

Throttle Muscle TM5853 FX805 Synthetic One Step Fuel System Octane Booster

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The Throttle Muscle FX805 is aptly named as this 108 octane booster increases mileage by 2.3% or more. Besides the performance boost the FX805 comes with a formula for the upper cylinder, and its 108 booster keeps the engine running smoothly. In addition the formula contains cleaners and detergents to remove contaminants.

The FX805 improves performance of both old and new cars. Even if you’ve got an old model that has logged more than a hundred thousand miles, you’ll notice improvements in starts, idling and speed. While the major improvement is in speed, it also promotes stability.

Royal Purple Max Boost Octane Booster and Stabilizer

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The Royal Purple formula provides a performance boost and raises octane levels by up to 30 points. At the same time it leads to better fuel efficiency and removes deposits that slow the engine. A deterrent to knocks and pings, the Royal Purple also acts a fuel stabilizer.

A single treatment brings about significant performance gains, and it is safe for use with different types of gas blends. For this to work your car needs to be set up for high octane use. Aside from the speed improvement you will also notice improvements in torque and idling.

What is Octane?

An octane booster does primarily one thing, boost your car’s speed. However it can also facilitate the flow of the internal combustion system. With an octane booster, you will be able to eliminate some of the carbon buildup. Carbon buildup is one the most common causes of engine deterioration and if not treated could cause serious damage.

Octane itself is a measurement of how long gasoline burns. The higher the octane number the slower it’s going to burn. With an octane booster you’re also going to see an increase in your car’s horsepower, and the compression ratio is improved as well. The compression ratio refers to the number of strokes the cylinder makes before igniting the fuel.

As the compression ratio goes higher, the greater the demand for octane, and this can cause problems with the engine. Pre-ignition could occur and damage the engine, but that is where octane boosters can be a real benefit because it enables full compression without leading to pre-ignition.

In short, octane boosters improve your car’s handling of octane so there’s not only a speed boost but also ensure the engine is in good condition. And it’s not difficult to use either as you just have to pour it into the fuel tank and fill it with gas. The greater the quality of the octane booster, the more significant the performance gain.

How Octane Boosters Work

Octane boosters can be made up of different ingredients such as glycerol, methylpropanol and ethanol, all of which boost its octane rating. This enhances engine combustion and the burning of fuel in your engine.

As you pour the octane booster, it makes its way to the cylinder, and the spark plugs ignite the fuel and air in the engine. This leads to an increase in the combustion power, enhancing fuel efficiency.

One of the byproducts of boosting the octane is it reduces your engine emission. This combination of increased temperature and super engine combustion leads to the unburnt gasoline to be released in your car’s exhaust system. The efficiency depends on the elements in the octane booster, with aromatics among the most effective.

Frequency of use varies, with some meant for regular use and others to be used in moderation. What’s important is you go with the highest quality octane boosters possible because they leave as little residue as possible in the engine.

Additives and Ingredients

The performance enhancement you gain depends more on the quality of the booster than the volume. A small amount of high quality octane booster is better than large volumes of low quality additives.

High quality octane boosters contain additives that prevent knock (pre-ignition or detonation) and enhancing fuel efficiency. There are lots of anti-knock additives, with the following among the most efficient.

MMT (Methylcyclopentadienyl manganese tricarbonyl)

MMT is widely used in refineries to increase octane fuel and it is a popular alternative to tetraethyl lead or TEL. MMT is as powerful as TEL but it more eco-friendly, does not cause harmful emissions and is generally more effective.


This is an iron compound and is an alternative to both TEL and MMT. Ferrocene however, is not allowed in some countries because it produces iron oxide during combustion. If you want to use ferrocene, make sure it’s of the highest quality to minimize abrasion. Iron oxide can be very abrasive and can lead to engine wear and tear. Provided the additive is of good quality, this can be prevented.

Aromatic Alcohols

Aromatic alcohols include benzene, xylene, toluene etc. They have different properties but all provide a performance boost. However you need to use them on a regular basis to see the benefits. High dosages (at least 10%) are necessary, and you should also handle these chemicals with care.


Ethanol can also be used to boost engine performance and even some racing cars avail of it nowadays. However, its stoichiometric ratio is different from petrol so your car runs leaner, and using more 10% (E10) will necessitate your car be tuned for ethanol. Under this setup your car could end up using more.

If you’re using E50 – E85 (50% to 85% ethanol, your car will need bigger injectors to deal with the additional fuel. Again it’s essential you use the highest quality ethanol fuel possible to prevent corrosion.

These are the most common anti-knock additives used today, but they are by no means the only ones. The more popular brands are always working on new formulas to improve performance, so many of them have proprietary elements that distinguish them from the others.

Internal Combustion Engines and How It Relates to Octane

Most vehicles use a 4-stroke cylinder, and in these ICEs (internal combustion engines), the intake valve opens at the same time the piston goes down. This process leads to a mix of the fuel and air. The piston starts to move up and compresses the fuel and air, causing the temperature to rise.

The temperature leads to cylinder pressurization, and this ignites the vehicle’s spark plug. It is this action that produces the energy required to power the vehicle. As the fuel / air mixture pushes the down the piston, it turns the crankshaft and makes the vehicle move.

As the car starts to move, the piston goes back up and sends the remnants of the fuel / air mixture out via the exhaust port. The cycle is then repeated. So where does octane come into play?

As was indicates earlier, the higher the octane rating the more pressure fuel can handle without pre-igniting. This makes it possible to adjust the efficiency and power, at the same time cutting back on emissions. Today’s engines are designed to do this, but adding an octane booster increases its capacity.

If your car has a high octane rating, it leads to a more efficient compression ratio, less frequent fuel injection and modifications to the spark ignition timing. Engines that have been designed for high octane use are also effective in terms of cutting back emission, and the amount is significant.

There are a lot of octane numbers / ratings you will see such as 87, 89 and even those 100 and up. The standard used in cars is 87, so an octane number of at least 87 can handle most cars’ compression ratios. An octane number lower than 87 presents a serious threat to the engine and could lead to serious damage.

The problems we mentioned earlier like knocking and pre-ignition engine damage occur when the compression ratio produces more heat and pressure than the fuel can cope with. This leads to early combustion and causes it to push against the still moving piston.

By using an octane booster, you’ll be able to increase the engine’s capacity to withstand additional pressure and heat before it ignites. This in turn leads to a more significant gain in terms of performance.


The best octane booster can do wonders for your car, but the key word there is the best. With the right mixture you’re going to see a marked improvement in speed, so the effort you put in the research is going to make a huge difference. With these reviews and tips you’ll be off on the right track.



  • Updated April 2, 2017
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