What happened to that 30% savings on mpg thread that was here this past weekend ? I didn't get a chance to read it.

I know what thread you're talking about, but have no idea what happened to it.
If you need help with anything to help save fuel, then look up JC Whitney. They're an auto supply catalog. They usually have additives, which you can add to your gas tank and it expands, even if only a little bit, the life of your gas.