Yep, it works & I think just about everyone here has used it. Contrary to what everyone on here has probably done, you should not over do it thus creating a mega ton of smoke. The correct way is to slowly suck in the Seafoam through one of the vacuum lines on the throttle body, or if you have the cool iv setup that professional shops have then you let a slow steady stream/drip go over about 20-30 minutes with the throttle bumped up a little.