Thread: Lousy mpg '94 E420 - Causes?
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Old 10-14-2007, 11:01 AM
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DRICHFL DRICHFL is offline
W124 Passion for E420
  
Join Date: May 2005
Location: Sunshine State
Posts: 225
Poor gas mileage
Larry, change your spark plug. Stick with Bosch Spark Plug FR8DC. Also consider changing your air filter, fuel filter and run some fuel injector cleaner.
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