SPreston2001 Posted September 30, 2008 Report Share Posted September 30, 2008 Post your avg MPG and offer advice to improve fuel economy. I have a 2000 STS and the dash is giving me a 19.8 avg MPG with city driving. I havent had it long enough to do a highway test, but this weekend I will be making a trip out of town and will post the results. I guess I cant complain when the car was advertised as having 17 city and 28 hwy with 300 horses racing down your neck!! Link to comment Share on other sites More sharing options...
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