Rick's Free Auto Repair Advice

Posts Tagged: 93 octane

Will premium gas increase power

Will premium gas increase power Every day people ask “Will premium gas increase power?” And I’m always amazed by the answers they get. So I’d like to straighten this out. If your vehicle requires 87 octane and you use a higher octane gas, you’re wasting your money. You will NOT get more power. Octane has NOTHING to do with power. Octane refers only to the gasoline’s ability to resist igniting from the heat of compression. Octane does NOT add any ENERGY to the gasoline. Instead, think of octane as a FLAME … Read More

Gas mileage and octane rating

Gas mileage and octane rating Every once in a while I read a post on an auto forum where someone claims to get better MPG and performance when running a higher octane fuel as if gas mileage and octane rating are related. Or, they claim to get better gas mileage with one brand over another. Different grades of gas contain nearly the same amount of energy (BTUs). The ONLY difference between 87 octane and 93 octane is fuel’s ability to resist detonation and knock due to the heat of compression … Read More

Wrong gas in car

Wrong gas in car What happens if you put the wrong gas in car? I see this question a lot in auto forums. Someone fills with 87 octane in an engine that requires 93. Then they realize the problem and want to know what will happen if they put the wrong gas in car. Modern cars and compensate for the wrong gas Car computers can’t tell what gas you put in your tank. It can only determine how well the gas is performing in your engine. If you have a … Read More

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