Just took a road trip (on 10/23) where I filled multiple times on one day. I noticed on the graph that while the fills for the day are both listed, they are in reverse order. The 'View all fillups' page lists the fills with the correct time of day, but when the graph is constructed the time of day information does not appear to be used to order the fills within each day.
I just edited the 'price' field on the first fuel-up for the day (I had accidentally entered the total price via the SMS message, had to change it to the per gallon price), and now it is displaying the graph in the correct order.
I'd suppose that if I edit the second fuel-up the order will change again.
Yeah, this is an ongoing bug. We don't have an option to set the time of a fuel-up, only the date, so the order isn't always correct if you have two fuel-ups on the same day. It doesn't matter so much if you're using odometer tracking because the order is obvious in that case. But the problem crops up with tripometer tracking.
If you let me know which fuel-up is which I can set the time for you manually, but obviously that won't scale for everyone. So we need to add the ability to set the time for a fuel-up in these cases. Sorry about the hassle.
I just added a field for fuel-up time on editing a fuel-up only. So if you run into this bug, you can now go in and edit your fuel-ups that happen on the same day and include the time. That should straighten out the order.
We're very hesitant to complicate the original add a fuel-up form with the time, but we can revisit that if this fix doesn't solve the problem.