Mopar makes a Combustion Chamber Cleaner (CCC) that i heard is similar to Seafoam. I sprayed it in the throttle body til the can was empty, shut the Jeep off, let it sit for 40 min, then started it up.... revved it to 3K-4K rpms and watched the white cloud form behind my Jeep (only to move toward the front of my car and choke me since i had the windows down), then drove it really hard. It drives alot better now. Where could I find Seafoam? My dad wants me to try this on his Windstar.