Premium Fuel Is a Waste in Cars That Don't Need It, Consumer Reports' Tests Show
Pull up to a gas pump and you’ll see several fuel options ranging from regular to premium, each with a higher price per gallon. Names like Plus and Supreme might make you think you’re paying more for a better product, but does more expensive fuel result in better performance? To find out, we conducted instrumented tests at our track. The result? Premium gas, usually labeled as 91 or 93 octane, isn’t necessarily better in cars that...