Is It Time For a Tune-up Yet ? Power Loss and Poor Gas Mileage Is It Time For a Tune-up Yet ? Power Loss and Poor Gas Mileage

Power Loss

How long since the fuel filter was changed? A dirty filter is a common cause of power loss. As noted under "poor gas mileage", there can be many causes of this condition, most of which can be located with a diagnostic procedure.

Poor Gas Mileage

By keeping a regular check of gas mileage (miles driven divided by gallons used) you can tell if your engine is losing efficiency. Increased gas consumption may be accompanied by other symptoms listed in this website. 

NOTE

Poor gas mileage also may be due to:

  • Under inflated tires 
  • Engine running too cold 
  • Transmission malfunction 
  • Dragging brakes 
  • Misaligned wheels
Courtesy of the Car Care Council

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