We changed the oil (using the owner’s manual recommendations ... I had no idea why I’d never heard of it before. Sea Foam Motor Treatment has been around since 1942, and was originally developed to ...

and something called Marvel Mystery Oil. Nestled among these purportedly helpful substances on parts store shelves you'll find Sea Foam Motor Treatment, but does dumping the contents of this white ...

In days of yore, these products were largely limited to liquid additives like Marvel Mystery Oil, SeaFoam engine treatment, and Liqui Moly Engine Flush. While these additives can actually help ...