If you keep your tires inflated to the proper pressure you can improve your gas mileage by up to 3.3%. Properly inflated tires will also last longer.
You can locate the proper tire pressure for you vehicle on the sticker in the driver’s side door jamb or your owner’s manual. Do yourself a favour and pick-up a tire pressure gauge at your local hardware store for about $5.
Make sure you keep those tires properly inflated and save yourself money at the pumps!