mikewithaprius's Forum Comments
Showing all comments by mikewithaprius.
Hey pb, so before it was a question, here's my official request for a new feature:
The partial fuel-up method of calculation is all over the place. If I take them out, the only correct number is overall average mpg. If I put them back in, I at least get best tank back.
But the running average is incorrect. The monthly graphs are incorrect, both factually and graphically. I see what you're saying about a shorter timespan, but in the end mpg = miles over gallons, and anything else is inaccurate. The numbers are starting to become relatively meaningless since my page, however cool it looks after the redesign, is littered with random, incorrect figures.
Don't even have to answer...just ponder, maybe I'll wake up and be surprised one day :-)
posted by mikewithaprius June 5, 2011 at 8:20 PM
OK, thanks. I might deselect partial fill-up for some of them to see the monthly average, then. Only issue is my best mpg will be incorrect, but I'll know what it is. On the second Gen Prius like I have the gas tank is variable in volume, so really every month I could have partial fill-ups, so I would never see my monthly average. Not really sure if other cars have that system (the "fuel bladder" went away on the third gen Prius).
posted by mikewithaprius June 1, 2011 at 10:40 AM
Not sure if you guys saw this part of the comment from up top cause it still looks the same on my page...the monthly average chart isn't showing the right figures since it leaves out partial fill-ups and the following fill-up out of the averaged values.
My March and May bars are good examples if you take a look. Thanks.
posted by mikewithaprius June 1, 2011 at 6:43 AM
Check out my post fourth from the top in this thread, third paragraph, just wanted to make sure you caught that. The number of fuel-ups is definitely fixed, thanks, but the months with partial fuel-ups still show the wrong average in the bar chart (the chart shows mpgs as if the partial fuel-up and subsequent fuel-up are not included).
Thanks again for your work.
posted by mikewithaprius May 24, 2011 at 10:11 AM
Hey pb, I have a similar problem. Partial fill-ups are not being counted in terms of number of fuel-ups, but also in some cases not at all toward mileage.
Take a look at my page. It says now 13 fill-ups in the gas pump graphic, though there should be 18.
Now look at my March 2011 bar. It says my average for the entire month was 57.8 mpg. That number is correct if you only count the first two complete fill-ups of the month. Since I had a partial fill-up as my third fill-up, that and the next are not counted. If you add up all the miles and divide my gallons you get 59.0 mpg, not 57.8 like the site says.
The lifetime mileage is correct.
Thanks for all your work on the site!
posted by mikewithaprius May 21, 2011 at 9:26 PM
Thank you all staff and programmers for the responses, also very cool how quickly you're working on it, all the stuff I mentioned magically appeared on the page when I took a look tonight!
posted by mikewithaprius May 10, 2011 at 10:38 PM
Ooh boy, I'm hogging the posting space :-) I keep looking back at it and posting something else. Apologies, should have looked more carefully at first.
I noticed another feature has disappeared - the very powerful "how much would I save if I got 1, 2, 3 mpg more" chart. I found that absolutely brilliant, and a great way to show people with their dollars how they could save money by driving better. It would be a shame if all the features encouraging good driving and saving money and gas (the EPA numbers, this chart) went away.
It still looks great, but those things take away a lot for me.
Also, my number of fill-ups is incorrect. Should be 17, says 13 (guessing something to do with partial fillups?).
posted by mikewithaprius May 9, 2011 at 8:03 PM
Just noticed a bug - my best fillup date is incorrect on the new page. It's off by a couple months.
posted by mikewithaprius May 9, 2011 at 7:54 PM
Notes I don't mind because of the search feature.
One thing - where did the EPA numbers go? I think the whole idea of tracking numbers is to give people an idea of where they are, and the EPA numbers, however flawed the test is, are a constant reminder of possibilities. If they're hidden somewhere, they really should be on the main page for each car.
The whole thing looks great!
posted by mikewithaprius May 9, 2011 at 7:52 PM
Hey pb, thanks for asking the EPA, hopefully they can get you something soon. I'd love to see this done, too, especially since then I'll be clear above the EPA rating instead of barely meeting it. Great site you have.
P.S. 2007 Prius, 48 city, 45 highway, 46 combined, if you have the time :-)
posted by mikewithaprius April 25, 2011 at 10:10 PM