Oil Additive

[criscodisco]

I was wondering if anyone else has ever used an oil additive called Bestline? I attended the Turkey Run here in Florida last November with my 86 gmc and came across the booth they had there. Their pitch was just like any other additive company but I stood around and watched a bench tester deal they did that was pretty impressive, so I bought some. Just got around to putting it in my truck about a month ago and it seems like its a pretty good product. I ended up getting about a mile more to the gallon and when i put the fuel conditioner in, (came with the package or i wouldnt have bought it) my truck actually gained about 200 rpm at idle. Ive used Lucas, STP and ZMax oil additives before and havent had results like this. I would like to get more, but I was wondering if anybody else has tried it or had any negative results, before I do.