I did not know this

* An idling car emits 12 times the amount of air pollution than one traveling at 30 mph. (Pima Association of Governments) A cold engine emits more pollution and reduces efficiency by 50%. (Federal Highway Administration)

* Idling your engine for one minute consumes the gas amount equivalent to when you start the engine.

* 10 minutes of idling every day can cost you about $70 (Cdn) a year in wasted fuel and it creates smog.

* Prolonged idling uses gas at the rate of about ½ gallon per hour.