I love my Smart, but its not behaving! Our avg. MPG is only 32 with the last fill up at 30!!! Yikes. Don't know what is going on.

Also, driving it is really jerky for me, especially at low speeds (ie... stop n go) I've never driven a manual, and the Smart is definitely not an automatic

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Comment by jaybudder on March 2, 2010 at 9:10pm
Thanks, I've definitely learned that my car has sweet spots and likes a very steady foot. What is cpm?
Comment by issinflight on March 2, 2010 at 12:32pm
I've written a good bit on my experiences with Shorty, my fortwo Passion; including a spreadsheet of gasoline mileage. Types of driving including city and an extensive trip --two 10-hr days each way of interstate at -ahem- close to 80 mph occasionally. see http://www.gordonslogic.com/categories/13-Smart-Car for further remarks.
Comment by Zippin Pippin on September 22, 2009 at 4:10am
Recirc and temp all the way down on the coldest position is the best temp setting to get the best performance and dehumidification in super hot locations like Memphis in August and now. I just have to live with the a.c. rather than that fab fuel economy. Shifting smooths out for me if i back off the gas maybe a quarter of an inch. It can still buck if I am traveling around speed bumps in 1st gear. It is smoother if I shift manually and anticipate its' shift. It just takes practice and experimentation. good luck
Rich
Comment by JoejoeSmartsalot on September 21, 2009 at 5:18pm
I just looked over many of these replies and I am not seeing anything about premium gasoline. Are you using an octane of 91 or higher? or do you stick with the regular 87? I noticed a huge difference when I was driving to millwakke from bloomington, the premium is recommended for better performance and Mpg, and in the long run, Saves you more money too! I hope I was some help : )
Comment by jaybudder on September 20, 2009 at 1:06am
Oh, my Pontiac Vibe gets about 23 MPG on the same stretch I'm driving.
Comment by Rich H on September 15, 2009 at 4:47pm
check your tire pressure. I had the same problem last Fall. I was getting 35 MPG. Makes all the difference. Avoid open windows at speeds over 40 mph. Avoid fast starts. Use Sunoco gas. By doing this I average between 41 and 47 mpg now. There are times I heavy foot it and it will go down to 35 mpg.
Comment by Tom Owens on September 15, 2009 at 10:30am
Try different gas companies I have found that with certain gas companies. I have seen up to 5 mpg change with different gases. Just a thought
Comment by Brabus007 on September 14, 2009 at 8:42pm
The Truth About EPA City / Highway MPG Estimates
http://editorial.autos.msn.com/article.aspx?cp-documentid=1089144&topart=newcarresearch
Comment by Grasshopper on September 12, 2009 at 9:40pm
Don't despair --I've sort of been going through the same thing. My car only has 4400 miles on it and I average about 29 - 30mpg if I'm lucky. I realize some things that are contributing to it being so low is: running the AC (I live in hot, humid Houston, TX, so it is NOT an option to turn it off about 8 mos out of the year). Also my daily commute is 6 miles, with traffic lights and stops signs the whole way. I'm lucky if I can go 45 mph in any give stretch. That being said, I changed to a better brand of gas to see if that might make a difference. The last two fill-ups, I have seen an increase, but I have also been driving my car in standard mode instead of automatic which is what I was doing. I don't use the paddles; I find them frustrating in turn situations (whoa, where did my paddle go?) but I put the car in standard mode on the stickshift instead. I have found that I get a little quicker response from using the stick instead of the paddles (I don't know why). So I use the stick always and watch my tach. With a little practice, I have gotten much smoother at shifting and downshifting and not letting the car lug or lurch and I don't have to gun it either when I need a little more pick up; the correct gear does that effortlessly.
I am still disappointed I'm not getting the 40+ mpg that so many other Smart drivers are getting; I get 28 mpg in my 4-door Mazda doing the same commute. But the bottom line is, I'm not hauling around a back seat and huge trunk that I don't need and taking up a lot of space on the road and in the parking lots :-). Plus it's just darned fun to drive! Have you check out ScanGuage? I hear many driver's swear by it for monitoring their mpgs and keeping track of their fill-ups, etc. Good luck to you; if it doesn't improve, you might take it back to the dealer and ask them about it.
Comment by jaybudder on September 12, 2009 at 7:56pm
Thanks guys... today was even worse. 29.5MPG
Unfortunatily my husband only added $10 to the tank instead of filling up, so after our 60mi. interstate trip and back we filled back up this time to the top and only got 29.5 (but this includes previous trips in stop and go, so I couldn't just calculate interstate driving.... ugg! either way that is bad!!! Our new avg. MPG is now 31!!!)

When I'm driving, I do try to anticipate the stops and will coast to them (drives the people behind me crazy). Yah, the Newton thing did come to mind while I'm driving. As for stop and go, I try to leave space between me and the next person so as to give me more room. I actually find it easiest if traffic is slow enough to just lift my foot off the brake with no gas at all and let the "hill assist" move me forward slowly. To be honent, I'm a little apprehensive to drive it in "Manual" I just don't have the hang of it yet. Trying to drive is a school zone is no fun at all.

When we first got it, my Husband had me let off the gas a little when the car is ready to shift to help it turn over, but it almost seems to make it Jerkier, so I don't know if it is helping. It almost seems better if I just let the automated manual do it's thing, instead of trying to anticipate it. Now we did not purchase the Tach. so I have no way (other than listening) to know what the RPM are. I really want to get an OBDII/Scanguage so I can figure out what is going on.

As for A/C its not an option here in SW FL... its HOT!!! Anyone know if the settings may a difference on MPG? Outside VS Recirculate (my guess, based on phyisics, is recirculate is more gas consuming than outside, since it actively has to pull the air in....) and Hi VS Low?

We always fill up with Premium, with the highest octane possible, 93. I don't know how the <10% ethonal affect the MPG.

I really wish the Smart came with an MPG gauge, especially an instant reading so I could see what's causing the low MPG. My father's brand new Honda Fit has better MPG than our Smart.... that's just not right.

We just hit 3000 today... and I've heard the 5000 thing, so I'm hoping that will be the case, but right now it just keeps going down, not up.

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