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Originally Posted by gpsman1
It is a rare day that I get LOWER than 46 MPG on my city commute in mild weather.
But with cold starts, short trips, hot summers, cold winters, and A/C use, well, you can see my lifetime average below.
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All of that is why "spot" mileage is useless number and the only thing that really matters is your average over time.
Sure, take out the ineffient parts of a trip and put any car in perfect conditions and you'll get great mileage compared to te lifetime average. I got 28+ mpg once in my 2004 V6 Escape after filling up with a warm engine and driving the whole tank on the interstate, at the speed limit, on relatively flat terrain and a nice warm day. I never shut the engine down until I needed gas again. If those were the only conditions I ever drove in I never would have gotten rid of it.
Yeah, you can get 46 mpg during controlled parts of your trip but factor in every thing else and reality sets in.