Testing shows that Cataclean cleans catalytic converters.
Cataclean does not alter fuel composition and is safe for gasoline, diesel and hybrid engines. Use Cataclean to fix drivability issues such as power reduction, hesitation and hard starts, as a pre-treatment before an emissions test or to extend the life of your vehicle engine. For optimum performance and protection, use Cataclean four times a year. Made in the USA.