SeaFuse
Active Member
When did Chrysler introduce catalytic converters? 1974? And was unleaded compatibility across the board in 71 for passenger cars? Thanks.
Catalytic Converter & Unleaded ntroduction
- Thread starter SeaFuse
- Start date
SIPLOWGUY
Active Member
1975 is the year catalytic converters went on cars in the US
traintech55
Senior Member
1972 for unleaded gas. That is one of the reasons they lowered the compression ratios.
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