***Myth*** Premium fuel is much better for engines and produces more power.
Reality: Premium fuel only produces more power when used in engines that have higher compression ratios or are turbocharged or supercharged, or are otherwise tweaked for high performance. It actually burns less easily than regular fuel, so using it in an engine designed for lower octane fuel produces less power and yields fewer miles per gallon. Premium fuel also generates greater profits for the oil companies and that’s why you never see them advertise regular or mid grades.
