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[deleted] t1_iuqydm3 wrote

Reply to comment by Etiennera in 30 minutes of car preheating in sub-zero conditions produces as much particulate emissions as driving 97km in a gasoline car, or 20km in a diesel car “These findings do not suggest to stop preheating cars; instead, we could reduce the emissions by using similar methods that are in place for engine” by giuliomagnifico

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dr_xenon t1_iuqyt14 wrote

-50F is such an extreme you pretty much need to leave it running.

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