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What MPG do I use for the mileage database>

  #1  
Old 06-04-2004, 02:39 PM
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I just added my fillups to the mileage database, but I wasn't sure whether I should use the display mileage (which seems to be a bit optimistic in the 2004 Prius) or the actual calculated MPG.

Thanks!
 
  #2  
Old 06-04-2004, 02:43 PM
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If you want the most accuracy then enter the calculated amount if the dispay is not correct.
In my case it is pretty accurate.
Thanks
 
  #3  
Old 06-04-2004, 02:46 PM
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I guess I'll go back and change it. If I'd been able to use the same pump all the time, it would probably be a little better....
 
  #4  
Old 06-04-2004, 02:58 PM
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I've been using the display, just because it's easier. In the end, it will only make a difference of 1-2 MPG. If 1-2 MPG makes the difference in someone's car purchase, they're either psycho or driving a truck
 
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Old 06-04-2004, 03:23 PM
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I hoped that everyone was calculating the numbers (isn't it called the Real Mileage Database?). The display in my 2000 Prius is always 6-14 % too optimistic. It is not only optimistic, but also varies a lot. Don't know how it works.
 
  #6  
Old 06-04-2004, 03:31 PM
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6-14? Wow! Real as in not "CBS 35" or "EPA 60" averages. There is no possible way I can mandate how the hundreds of people using the system are going to calculate their averages. If I could force everyone to record their odometer and fuel amount numbers, I would. It just isn't going to happen, though.
 
  #7  
Old 06-04-2004, 03:40 PM
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What I've seen from the members on GreenHybrid so far, they seem to be willing to make an effort when it comes to mileage...

But I can see your point, and I guess you know your members a lot better than I do. How about recommending to find out the average deviation on the display, and then recalculate before entering the data here? In my case I would take my display mileage of 48 and take away the average 10 % to get 43.
 
  #8  
Old 06-04-2004, 03:47 PM
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Too hard In today's world, quantity rules over quality. However, there are still things I can do. I plan to add a few more features to the database when I have time. Of these would be allowing the member to select whether their measurement is by display or calculation. Another is the average % speed over/below the limit.
 
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