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I've never seen smog in my life. Smog was an issue in the 70s. Emissions today are a 10th of what they were then from cars. And dropping even further with those nasty environmental catastropy hybrids and electrics. No that's not sarcasm. No need for further fuel efficiency. Originally fuel efficiency was done for lowering fuel consumption to combat a fuel crisis. No such animal now. Now its used to lower emissions for climate change bs. Back to burning my trash and removing catalytics from every car I own.
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