Splurging on premium grade gasoline is a waste of your money if your car is designed to run on regular fuel. That’s the conclusion of a new Triple-A study that evaluated the performance of vehicles.

Evaluated were vehicles with  four, six and eight-cylinder engines, first with regular grade and then premium grade gasoline. Researchers say they found that gas mileage, power and emissions do not improve with the use of higher octane fuel. They estimate that consumers squander more than two-billion-dollars each year on gasoline upgrades that are not needed.

However, about 30-percent of cars on the road, generally pricey imports and alternative fuel vehicles, do require medium grade or premium grade gas. Triple-A says motorists who drive those cars should not try to substitute regular gasoline to save money.

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Story from Metro Source News