no, no knows issues, i just want to avoid build up of oil residue in the intake and throttle body
http://www.ebay.com/itm/151524056541?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
this is the one i bought, you can buy name brand for upwards of $200, but from my research, these...