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Minionz t1_iurqly6 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

All cars up north die premature deaths anyway from corrosion, since no one cleans the undercarriages. They make hose attachments for it. If its -degrees sure you're probably not able to. But people don't do it on below freezing nights, and above freezing days either.

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gathermewool t1_iurulpk wrote

Right, but the corrosion is significantly reduced at lower temps. It doesn’t matter as much if your car is covered in salt if you’re parked out in 0F temps for weeks on end. The rate of corrosion will be minimal compared to sitting in your 40F garage EVERY night.

I admit that I know this and still don’t wash my undercarriage as often as I should. I even have the attachment for me pressure washer and all!

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Minionz t1_ius23iw wrote

That is true. However the freezing point of salt water has a lower freezing point than fresh water so it would be about 28 degrees~

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