The radio program, “Car Talk,” was a canon of auto repair advice for 35 years. Hosts, Tom and Ray Magliozzi, agreed that not only is idling wasteful but newer engines don’t need to be warmed up before hitting the road.
https://www.cartalk.com/content/should-john-valet-be-warming-cars
https://www.cartalk.com/content/do-cars-need-warm-cold-winter-mornings
https://www.cartalk.com/content/i-am-elderly-woman-and-i-take
https://www.cartalk.com/content/my-drive-work-each-day-less
https://www.cartalk.com/blogs/tom-ray/idling-inconsiderate-knuckleheads
Also, our experts explain why it takes more gas to idle your engine than to restart it.
https://www.cartalk.com/content/living-colorado-i-wonder-about-being-stuck