thomasQuestions(2)Answers(0)Posts(0)Commentsfuel injectors, how to clean and how often. my 2012 Prius has 30,000 miles.chemtooler answered 10 years ago • Choke, Cleaning / Degreasing > B-12 Chemtool® Carb, Throttle Body Cleaner1389 views1 answers0 voteshow to clean fuel injectorschemtooler answered 10 years ago • Choke, Cleaning / Degreasing > B-12 Chemtool® Carb, Throttle Body Cleaner923 views1 answers0 votesCrop