I think Chevron adds a small amount of Techron to their gasoline as is, so you're already getting a little Techron every time you fill up with them. But they also sell a more concentrated bottle than you can add to your tank, for some extra detergent action to get rid of gunk. I meant as an alternative to the Lucas Oil. I would use one or the other, not both. The Iso-Heet is a separate type of product, purely for water removal. By the way, I mis-spoke. It doesn't really "bind" to the water, it just mixes with it (dissolves it) and this new ispopropanol-water mixture will burn up more efficiently in the chamber.