Our choice for the best budget octane booster comes from STP. It’s an affordable option available in a 5.25-ounce bottle, which can treat up to 21 gallons of gas. There is also a 12-ounce option ...

When it comes to improving your car’s performance and protecting it from untimely damage, an octane booster can make a world of difference. In case you’re unfamiliar with octane boosters ...