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colem5000 t1_iut31ii wrote

Reply to comment by gathermewool 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

Who warms their vehicle up when it isn’t negative temps? That is a complete waste of time and gas. Well where I live it gets to minus 40 every year and averages around -20 all winter. That’s what warming up an engine means to me, not at plus 2. So yes I guess your right at the temps your talking about it’s fine to drive to warm up your vehicle but not in the winters where I live.

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