seafoam is a luquid it clean carbon and such out of your engine. What you do is take the brake booster hose (the black house coming off the side/top of the master cylinder for the brake in the engine bay and put about half a can into that. You need to just take your time and not put to much in because it will stall the engine. When you take the hose off the engine will almost die so keep your finger over it and just do the best you can. I did it on my truck and just stuck the hose in the can and tried that. Worked great actually.