On the Road Park and walk into drive-through locations rather than idling. Idling can waste fuel and contribute to higher ground-level ozone. A cold engine consumes about 20 percent more fuel than a warm one. Maintain your vehicle by getting regular tune-ups. Well maintained vehicles pollute less and get better gas mileage.
Low pressure reduces gas mileage and the life of the tire.
Try not to use the air conditioning in your car for local trips. Your car's air conditioner can reduce gas mileage up to 20 percent. An exception to this would be when traveling on interstates or other roads at 55 mph or faster. Under those conditions, the resistance created from open windows probably reduces gas mileage by about the same amount. Driving at 55 mph rather than 65 mph can increase your mileage by over 15 percent.