1. Catalytic converters were optional in the larger petrol units starting from 1986.2. Some automakers want to develop an inexpensive catalytic converter to cut pollution. 3. New cars have catalytic converters , which reduce carbon monoxide and nitrogen oxide. 4. One example of this is the platinum used in automobile catalytic converters . 5. This includes filters for particulates and catalytic converters to remove nitrous oxide. 6. Cerium oxide, also found in catalytic converters , makes the methane react quickly. 7. It is also used in automobile catalytic converters , which reduce hydrocarbon emissions. 8. The new gasoline helps a vehicle's catalytic converter more efficiently remove pollutants. 9. They're wrapped around the catalytic converter and are slowly melting away ." 10. Vehicles fitted with catalytic converters produced nearly half of that nitrous oxide.
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