Odd things are not adding up with numbers...
4th Gear Member
Joined: May 2012
Posts: 1,220
From: New York
Are you resetting your on-board at the gas pump when you fill-up and NOT TOUCHING IT until the next fill-up? If not, you're not getting a true average. Also, the majority of the on-boards tend to be a little inaccurate to the conservative side. If you hand calculate you'll get more accurate but probably a little lower numbers. The onboard on most of the S197's tends to be high by about 1.5-2 MPG. On the other hand, my wife's 06 V6 is near dead on. She hand calculates and it's usually within 2 tenths of a MPG.
Joined: Jul 2012
Posts: 4
From: WV
I have a 2012 w/3.7 and auto w/8800 miles and I average 22-24 city and on a recent trip to Monon Indiana....I live in West Virginia by the way.... I got 31.5 on the dash display and by actual calculations...which I do on every refill...32.8 mpg. One of the reasons I traded my 2008 4.0/auto for the new model...better mileage and much better power,both cars auto,both 3.55 rear end gears,both cai. 
4th Gear Member
Joined: May 2012
Posts: 1,220
From: New York
6th Gear Member
Joined: Jun 2007
Posts: 16,182
From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
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