Most cars use regular gasoline. When—and if—you should upgrade to premium gas are questions you may have considered, and we’re here with answers. AAA researches different types of fuel to help you make smart decisions at the pump. Take this quiz to reveal what we found—your wallet may thank you.

Quiz only available online


Bottom line on premium gas: If you’re one of the millions of drivers using premium fuel despite the vehicle manufacturer’s recommendation for regular, press the regular button instead and save yourself some money. AAA tests found no benefit to using premium fuel in a vehicle designed to run on regular gas.

AAA tested both regular and premium gasoline in vehicles designed to operate on regular-grade fuel and found no significant improvement in horsepower, fuel economy or emissions, suggesting that using premium gasoline when it’s not required for the vehicle offers no advantage.

Want to up your gas game? Take our quiz on fuel myths or see why driving on empty is a bad idea.

Fill Up for Less

AAA Members save at least 5¢ per gallon at Shell when signing up for the Fuel Rewards Program (terms apply).

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