When the weather is cold, many motorists wonder if they need to let their vehicle “warm up” or idle before driving. In fact, today’s modern cars are ready to drive in cold temperatures without excessive idling. The best way to warm up your car’s engine is to drive gently at the start, advise the experts at the non-profit Car Care Council. They also offer a free Car Care Guide for motorists in easy-to-understand, everyday language. For a copy, in English or Spanish, visit car-care--dot--org.