In lower compression engines (engines designed to use regular 87 octane fuel), using high octane fuel results in incomplete combustion, reducing power output and increasing emissions. Unless your vehicle is designed to use higher octane fuel, all you’re experiencing is the placebo effect and a little extra outflow from your bank account.
In lower compression engines (engines designed to use regular 87 octane fuel), using high octane fuel results in incomplete combustion, reducing power output and increasing emissions. Unless your vehicle is designed to use higher octane fuel, all you’re experiencing is the placebo effect and a little extra outflow from your bank account.