Autoblog may receive a share from purchases made through links on this page. Price and availability subject to change.
Every vehicle has a recommended fuel octane rating. Most cars on the road use 87 octane unleaded gasoline, but some vehicles recommend or even require 91 or 93 octane gasoline. Octane booster additives are used to restore lost power and acceleration. They can also reduce fuel consumption and protect your engine. However, it is not recommended to use a lower octane rating than your vehicle needs and add fuel boosters to make up the difference. Over time this could damage your engine.
Here are the best octane boosters currently for sale on Amazon.
$9.99 at Amazon
Key Features
- Safely increases octane
- Helps improve engine performance
- Helps in engine efficiency
- Reduces detonation
- Cleans injectors
- Treats up to 18 gallons of fuel
This K&N Performance Octane Booster safely increases octane and improves performance. This booster can also clean your injectors and increase the efficiency of your engine. One bottle of this K&N booster can treat up to 18 gallons of fuel.
$3.97 at Amazon
Key Features
- Restores lost power and acceleration
- Cleans the fuel inlet
- Made with kerosene
- Reduces knocking and ringing
- Treats up to 21 gallons of fuel
Made from jet fuel, this STP octane booster can clean your fuel system while increasing your octane rating. One bottle of this booster can treat up to 21 gallons of fuel.
$7.98 at Amazon
Key Features
- Increases the octane rating of boosters by 3 ratings
- Ensures reliable performance
- Lubricates rings
- Improves cylinder life
- Recommended for 4-stroke engines only
This Lucas Oil Octane Booster can increase the octane number by three numbers. It can improve cylinder life and lubricate piston rings. This booster is only recommended for four-stroke engines.
$29.99 at Amazon
Key Features
- Handles octane ratings between 94 and 116
- Suitable for high compression, turbo and blower engines
- Corrosion protection
- Prevents carbon formation
- Prevents phase separation
The BOOSTane Professional Octane Booster can treat octane between 94 and 116. It is suitable for high compression, turbocharged and blower engines. It can also be used in boats, motorcycles, ATVs or any other 2-stroke or 4-stroke engine.
$14.27 at Amazon
Key Features
- Increases octane rating by 3 ratings
- Increases horsepower
- Stabilizes fuel
- Reduces engine knocking and ringing
- Helps with fuel economy
- Works with all ethanol blends
This Royal Purple Max Boost Octane Booster can increase the octane rating by three ratings levels. This booster can also increase power, stabilize fuel, improve fuel economy, and reduce engine knocking and ringing.
How do octane boosters work?
Octane boosters are added to the gas tank before refueling and increase the octane rating of your fuel. Power is restored and engine knocking is reduced.
Are there any disadvantages to using octane boosters?
Octane boosters can increase your car’s performance a little, but there are limits. According to Driving.ca, “Adding octane to premium gasoline does not turn a sled into a rocket.” There can also be a problem if too much octane improver is used regularly. If you drive a car that uses 89, 91, or 93 octane gasoline, choose lower horsepower, and add an octane booster, your engine will be damaged over time. Some octane boosters contain lead or metal-based additives, which can also harm your engine.
Octane booster vs. fuel injector cleaner
Injector cleaner are designed to eliminate carbon deposits in the fuel system to improve engine performance and fuel efficiency. On the other hand, octane boosters increase performance and efficiency by increasing the octane rating of your fuel.