Berryman B-12 Chemtool Fuel System Cleaner (part #0116) is an excellent cleaner and fully compatible with the vast majority of non-coated throttle bodies. However, it does not meet VOC regulations for this application in some states, including California, the Midwest, and the Northeast. If your state has such restrictions, try Berryman B-12 Chemtool Carburetor, Choke & Throttle Body Cleaner (part #s 0110C or 0117C) or B-12 Chemtool Air-Intake Cleaner (part #2209).