By Matt Schmitz on September 1, 2013
If you'll forgive the 35-year-old pop-culture reference, there's a scene in 1978's "Superman: The Movie" where a motorist pulls up to the filling station and, asked by the attendant if he wants regular or premium, replies, "she hasn’t had a drink in a while, give her a tank of the good stuff." Don't try this at home, kids. The notion that putting premium fuel in your regular-fuel engine will do anything but empty your wallet is as dated as the Christopher Reeve movie's visual effects. Follow manufacturer instructions, and the link below, and you won't need Superman to save you — money, that is.