Quote:
Originally Posted by grasshopper
I'm only getting about 32 MPG here in the city (Houston). It's all stop and go between me and my office (6 miles) and I have to run the air conditioner the whole time. I have been very disappointed since I keep hearing about well everyone else is doing on their mileage. I went to San Antonio last month (189 miles), drove 75 MPH the whole way, and got 33 MPG. I've even tried driving all automatice for a tank or two and then manual; it seems to make no difference whatsoever. :-(
I still absolutely love this car though! I can't say enough about it! 
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The deck is certainly stacked against you

- short trips, A/C, stop and go traffic, and I'm guessing it's probably not broken in yet. It may improve somewhat with break in. As far as trips go, the smart doesn't get it's best mileage at higher speeds especially if the A/C is running. I'd try to keep it between 60 and 70 for best results, but that may not be practical in your area.
A ScanGauge may give you some ideas, but I don't think it's going to matter much in those conditions.
Also, are you running 93 octane and can you get it without ethanol? My MPGs can vary noticeably depending on the station and ethanol mix.