It’s quite common to see it on a cold day.
Parking cars and trucks that have steam coming from their tailpipes, as their owners heat them up before they drive. But is it necessary to do so?
It was the case in the old days, when cars used carburetted engine, but not with modern fuel injected powertrains.
AAA and most experts agree that you should only let the engine run for 30 seconds. Or as long as you need to get comfortable and get your feet on the ground. It will give the engine enough time to circulate oil, which is also not an issue with modern vehicles.
Many models have remote starting systems that can be used to heat the cabin.
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AutoZone says that although there are laws in place in some states or cities restricting this practice, they can carry fines of up to $1,000. A car with an internal combustion engine will heat up quicker while it is being driven.
When possible, keep electric cars plugged in. They have conditioning systems that can maintain the optimal operating temperature of the batteries and can also heat the cabin without emitting tailpipe emissions.
An extended warm-up should only be considered in cases where you are having trouble scraping snow or ice off the windows. A good scraper and can can of remover will help speed the process. This is a crucial safety precaution before you head out on the road.
Source: Fox News