Seafoam, bad MPG after use?

[the 18th letter]

I'm still using it every tank, I stopped once for two tanks and I could tell the difference in it and dropped @1/2-1 mpg so I started using again. My plugs and everything else are still nice and clean so it's a relatively cheap benefit it seems

I guess I'll grab a brew and knock out some pages on that link. Think I'm gonna give it a shot.

 

[George B]

Deleted: Wrong Thread