A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
Cataclean reduces harmful carbon build up of the catalytic converter, oxygen sensors, valves and injectors in Gasoline and Diesel engines! In addition to reducing emissions by up to 60%, Cataclean’s unique formulation helps solve non-mechanical, carbon related driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy. Cataclean is also effective as a pre-inspection service and as a tool to help pass failed emissions tests. Simple “pour in” fuel tank application, no purge machine required.