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Understanding Fuel Economy Ratings

by Vincent Ciulla
for About.com

Understanding Fuel Economy Ratings

   Even though these figures are adjusted, they still represent what the average driver will get. Your fuel economy may be significantly higher or lower, depending on how, when, and where your vehicle is driven.

Here are some things you can do to increase fuel economy:

  • Combine errands into one trip.
  • Turn the engine off rather than letting it idle for more than a minute.
  • Have your car serviced as described in the maintenance booklet.
  • Keep tires inflated to recommended pressures.
  • Anticipate traffic stops.
Here are some things that will lower fuel economy:
  • Quick acceleration.
  • Traveling at higher speeds. Traveling at 65 mph instead of 55 mph lowers fuel economy by 15 percent.
  • Carrying unnecessary weight in the vehicle.
  • Revving the engine. This is not necessary for your vehicle.
  • Operating your vehicle with the suspension out of alignment or with the wheels and tires out of balance.
  • Use of electrical accessories that require high amperage when they are not needed.

   Even things beyond your control, such as weather conditions, affect your fuel economy. Driving up steep hills, in rain or snow, and into a strong wind will lower fuel economy. In the lower left corner of the fuel economy window sticker for your vehicle is the range of city and highway fuel economy you can expect to get from your car. If you are doing everything to raise your fuel economy but are still not within this range, your vehicle may need service. Collect as much information about your fuel economy as you can find (miles driven, gallons of fuel used, etc.) and provide it to your dealership for their review and assistance.

   Copyright © 2001 - 2003 Vincent T. Ciulla All Rights Reserved

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