the mid 1970s
The first year for Catalytic converters was 1975They were first required on all cars in 1975.
It is a federal law that catalytic converters are required on all cars built after 1975
American cars have had catalytic converters since the mid 1970's.
Platinum
Mercedes,bmw,acura
No, diesels can and do have them also.
very little since the invention of catalytic converters.
Catalytic converters.
Old cars give off more carbon dioxide because they do not have catalytic converters. Catalytic converters act as catalysts, converting dangerous substances such carbon monoxide into harmless compounds.
Almost all cars have only one catalytic converter. Some can have two, four, etc.
Yes. All cars made after 1975 are required to have one.
Catalytic converters and Ethenol, Electric, and Liquid Propane cars.