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mpg drop

  1. Terrible MPG all of a sudden

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Hi everybody, I have had a misfire issue on my car for quite some time. It hasn't gotten better or worse and the car keeps chuggin along. The misfiring occurs when I press the throttle 50% or more. The car then shudders pretty badly. I was getting acceptable MPG, SID usually estimated around 21...
  2. Major Fuel Economy Drop 2006 9-3

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    My 2006 9-3 2.0t 106k mileage dropped by 50% almost overnight... I'm stumped and going broke. I've had the car for 6 months. Was getting 23-25 MPG combined for first few months. Seemed like overnight it dropped, last couple months I'm getting average 10 MPG same commute, same driving habits. Car...
  3. Miles per gallon dropped in half!? (03 2.0T)

    9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Hi there, I've had my 9-3 for a year now and have been getting 28 - 30 MPG on the highway. 2 weeks ago, my mileage dropped to 15 (on a good day) and I've verified this by filling the tank and it only lasting 200 or so miles. No noticeable power difference, and I've tried resetting the...