Here’s the Real Reason You Should Never Warm Up Your Car

On cold winter mornings, some folks will fire up their cars and leave them running for 10, 20, maybe even 30 minutes, thinking they’re reducing wear and tear by letting their cars warm up gently. But Jason from Engineering Explained is here to explain why that’s a bad idea for your car. (This post was originally published on August 3, 2016 and has been republished because it’s getting damn cold outside for much of the country. – Ed.) The conventional wisdom that you should idle your car up to operating…

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