Avoid High Speeds: As your speed increases, your aerodynamic drag increases in an exponential fashion. Driving 62 mph vs 75 mph will reduce fuel consumption by about 15%.
Do Not Accelerate or Brake Hard: By anticipating the traffic and applying slow steady acceleration and braking, fuel economy may increase by as much as 20%.
Keep Tires Properly Inflated: Keep tire air pressure at the level recommended by your vehicle manufacturer. A single tire under inflated by 2 PSI, increases fuel consumption by 1%.
Use A/C Sparingly: When the air conditioner is on it puts extra load on the engine forcing more fuel to be used (by about 20%). The defrost position on most vehicles also uses the air conditioner.
Keep Windows Closed: Windows open, especially at highway speeds, increase drag and result in decreased fuel economy of up to 10%.
Service Vehicle Regularly: Proper maintenance avoids poor fuel economy related to dirty air filters, old spark plugs or low fluid levels.
Use Cruise Control: Maintaining a constant speed over long distances often saves gas.
Avoid Heavy Loads: Remove the sand bags from your trunk in the spring and pack lightly for long trips.
Avoid Long Idles: If you anticipate being stopped for more than 1 minute, shut off the car. Restarting the car uses less fuel than letting it idle for this time.
Purchase a Fuel Efficient Vehicle: When buying a new vehicle examine the vehicle’s rated fuel efficiency. Usually choosing a small vehicle with a manual transmission will provide you with great fuel economy.