We have had our Smart since July 2008. Currently have 26,000+ miles on it.

Our best mpg is 52. Our worst about 25. We quickly learned.

1) Name brand gas only. Nothing from Sam's

2) Run in automatic on the transmission.

3) Fill the tank when it gets down to half.

4) Only run Premium gas.

5) Best mpg comes staying between 60 - 75 miles per hour.

We have gone as fast as 95, run it down to so close to empty that we put in 8.9 gallons and tried driving in manual.

Don't know how others are doing but that is what we do.

Combined city - highway is usually 38 to 42 depending on the combo. The A/C doesn't seem to matter much to the mpg.

We live in the Houston, Tx. area

Love our "Baby"

Cappy

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Comment by Dave & Bianca VanderWal on October 4, 2009 at 1:35pm
We have had SCHMART since last May and have 3846 miles on her. Our usage has been primarily on an island with a top speed limit of 45. I just filled up yesterday at the same pump I used the previous fillup (two months ago!), and got 41.56 mpg when I did the calculation. Most of this was put on in 10 mile trips across the island. With premium gas at $3.37 a gallon, we are pretty pleased with this performance.
Comment by Todd Blackley on October 3, 2009 at 11:40am
I agree, Auto mostly, light on starts, stops and shifting, 60-70 and almost all highway gets me 48-49 mpg. I do travel from 7'000 - 5'000 and back every day. I have 12,500 miles on my 09. I did not know who to drive my smart till about 5,000 miles. Then I got better. I had over-thought driving it at first.
Comment by Jamie in Chesterfield on October 3, 2009 at 10:17am
I have had PLATO for 7 weeks - two fill ups. First fill got 34 MPG second fill 41 MPG this is city driving very few Highway miles. I am loving this!
Comment by Michele on October 1, 2009 at 6:13pm
I have had my car a little over a year and I get about 41 mpg's with putting in the most expensive gas.
Comment by Jan on September 30, 2009 at 10:27pm
I have had mine for about 7 weeks and have 3200 miles on it. I am averaging about 37.5. My driving is about 80% highway and 20% city. I don't know that name brand makes that much difference though as long as you stick with higher octanes. At least around the Mississippi Coast, you see the same trucks delivering gas to Chevron, Sams, or BP. Not necessarily the same truck, but trucks with the same name on the outside.

The dealer told me that as it broke in it would begin to do better. It has crept up a little bit each time. The tips for good mileage said try differnet places and then try to stick with the one that seems to give the best results.
Comment by bruce kelton on September 29, 2009 at 12:50pm
Just got 54.5 miles to gallon with no a/c running and using in auto mode.
Comment by Jim VW on September 28, 2009 at 6:35pm
95?? I was under the impression the computer limits the top speed to 90MPH. My 2008 Pure would top out at 90... OK I only tried it once... mileage depends on climate, road conditions, elevation, temperature, driver, motor condition, etc. It is extremely unlikely that 2 people will get the exact same MPG in two identical cars driving the same road a the same time.

Not all gas pumps are the same either. they are supposed to be regulated as to the calibration but that too is open to debate. The only sure way to measure MPG is over a number of fill-ups and average them together. You do bring up some good points about name brand premium (at least 91 octane) and how you achieve best MPG.

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