Originally posted by Gerry_M:


Then (the next morning) start the car. The B12 -- given enough time -- turns carbon into a sort of 'powder' (which is why you let it sit overnight!) ...and this then is easily dissipated out the exhaust. Net result -- your UIM etc. is clear of carbon.




I can just imagine how this affects the Pre cats and main cat.

98.5 Black SVT with 34k miles Build #5683 Born on 4\15\1998 WR Headers GMK CAI Blaupunkt system fiberglass tweeter pods L.E.D. tail lights in the works