[ctvpa]

I use about a shotglass full every tank. I is supposed to help lubricate, but I don't see how, because it's in the fuel and ignited. But I have used it, and will continue to.

If you use the "Search" function on Ford Barn, there was just a long list of comments on this subject with several good suggestions.

There is so much information on this amazing site, whenever I have a question, I usually try the "search" feature first, the answer is usually there.