Found this on sniperhide...
I happened to be in a friends auto shop today and swore I had smelled Butches Bore Shine in the air. I realized he was using GM Top Engine Cleaner on an older vehicle he was servicing.15 oz.= $6.75,Butches Bore Shine=$16.00 for 16 oz..I took the container home and guess what when I compared the ingredients-THEY ARE THE SAME! [Eek!] . I mean EXACTLY the same.I guess I'll save myself 10 bucks a bottle-I think the stuff works very well.
I happened to be in a friends auto shop today and swore I had smelled Butches Bore Shine in the air. I realized he was using GM Top Engine Cleaner on an older vehicle he was servicing.15 oz.= $6.75,Butches Bore Shine=$16.00 for 16 oz..I took the container home and guess what when I compared the ingredients-THEY ARE THE SAME! [Eek!] . I mean EXACTLY the same.I guess I'll save myself 10 bucks a bottle-I think the stuff works very well.