Bunkermagnet
Journeyman Pro
Myself and my wife run both of our cars on E5. My wife is not a mechanical person, but even she can feel the difference in engine noise, smoothness and MPG so refuses to put E10 in hers. So if she can tell the difference, there must be something in itI'll give it a try. Is there any value in trying E5 and assessing the difference or is the price difference more than the gains?