The best octane boosters of 2024

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

Every vehicle has a recommended octane number for fuel. Most cars on the road fill up with 87-octane unleaded, but some vehicles recommend, or even require, 91- or 93-octane gas. Octane booster additives are used to restore lost horsepower and acceleration. They can also improve fuel economy and protect your engine. It's not recommended, however, that you use a lower octane than your vehicle requires and add fuel boosters to make up the difference. Over time this could damage your engine.

Here are the best octane boosters that are currently for sale on Amazon.

$9.99 at Amazon

This K&N Performance Octane Booster safely increases octane numbers and improves horsepower. This booster can also clean your fuel injectors and increase your engine's efficiency. One bottle of this K&N booster can treat up to 18 gallons of fuel.

$3.97 at Amazon

This STP Octane Booster is made with jet fuel and can clean your fuel system while boosting your octane numbers. One bottle of this booster can treat up to 21 gallons of fuel.

$7.98 at Amazon

This Lucas Oil Octane Booster can increase octane ratings by three numbers. It can improve cylinder life and lubricate piston rings. This booster is recommended for four-stroke engines only.

$29.99 at Amazon

The BOOSTane Professional Octane Booster can treat octane between 94 to 116. It’s suitable for high compression, turbocharged and blower motors. It can also be used in boats, motorcycles, ATVs or any other 2-stroke or 4-stroke engine.

$14.27 at Amazon

This Royal Purple Max Boost Octane Booster can raise octane by three rating numbers. This booster can also increase horsepower, stabilize fuel, improve gas mileage and reduce engine knocking and pinging.

Octane boosters are added to the gas tank before a fill-up and will raise the octane level of your fuel. Horsepower will be restored and engine knocking reduced.

Octane boosters can boost your car’s performance a little bit, but there are limits. According to driving.ca, “Adding octane booster to premium gas doesn’t turn a sled into a rocket.” There can also be an issue if too much