No. The practice is left over from the days of carburetors. Today’s vehicles have fuel injection.
The car experts at Car Talk, the award-winning public radio talk show that expertly tackled scores of car maintenance questions for 35 years, answered that question (again) on their blog in June 2017. The only thing a driver does by idling is waste fuel — and risk the vehicle being stolen, if left unattended.
The best way to warm up your car, according to the experts at Car Talk, is to start it up and ease on down the road. The car will warm up faster when driven. In addition, you’ll use less fuel and pollute the air around your home less.
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