Higher mileage tips.

1) Keep tires properly inflated. Low tire pressure reduces gas mileage and causes increased tread wear. You can lose up to 6% of fuel efficiency for every pound per square inch (psi) below the manufacturer's minimum recommendation.
2) Turn off your engine if you are stopping for more than 30 seconds. Restarting your car takes less gasoline than idling.
3) Remove unused luggage, bicycle or ski racks and other extra weight you may have in your car. Every 200 pounds of unnecessary weight reduces mileage by 1mpg
4) Have your tires properly balanced and keep the vehicle properly aligned to get the best gas mileage.
5) Service your vehicle regularly. Keeping a vehicle well maintained keeps it operating efficiently and reduces fuel usage. Replace air filters and fuel filters regularly. A new air filter alone can improve gas mileage by as much as 10%.
7) Turn off the air conditioner whenever you can. Running you're A/C causes extra work for the engine, which lowers fuel efficiency by 5-10%.