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Following the chain of links, I think this article is the original source: https://www.businessinsider.com/heres-what-idling-your-car-in-the-morning-is-doing-to
by timmaxw 4y ago
Following the chain of links, I think this article is the original source: https://www.businessinsider.com/heres-what-idling-your-car-in-the-morning-is-doing-to-your-engine-and-its-not-good-2016-1 https://www.businessinsider.com/heres-what-idling-your-car-i... It's a much more detailed article, including some specific claims about the science.