Ed Says:

Keep your tires properly inflated and you’ll improve your gas mileage by more than 2%.
Use the manufacturer's recommended grade of motor oil and you’ll improve your gas mileage by up to 2%.
Using Nitrogen in your ties increases fuel efficiency by 3 – 5%.
Travel light! An extra 100 lbs. in your trunk can cut your fuel economy by 1 to 2%.
A clean air filter can improve your gas mileage by as much as 10%.
Don’t put off your oil changes! Keeping your vehicle properly maintained will give you better fuel economy.
Turn off your car when you’re sitting in the carpool line! Idling your engine wastes gas.
Be nice to your car! Using an engine treatment once a year/15,000 mi. will reduce engine wear and can increase fuel efficiency 3-5 miles per gallon.
Where’s the fire? Every 5 mph you drive above 60 mph is like paying an extra 10 cents per gallon of fuel.
Service your fuel system once a year or every 15,000 miles to remove deposits, improve mileage, and restore your vehicle’s power and performance.
Replacing your fuel filter every 2 years or 30,000 miles is a must for keeping your vehicle running at peak performance.
Setting the cruise control maximizes your fuel efficiency.