Easy Idle is an antifreeze mark for more inactive cars. It gives them a warm start in a cold morning. It sponsored Ruby Oaks in Cars and an unnamed stock car in Cars 3, but it is currently sponsoring an unnamed Next-Gen in Cars 3 in the Piston Cup Racing Series.
- In Cars, the Easy Idle Racer bore the number 51. In Cars 3, the Easy Idle racers bear the number 15, most likely because it would later be the number of Cruz Ramirez.