If you spend the time to do this, I will spend the time to do this. Then we can get compare them. There's probably an easy way to export the data from fuelly into excel, then you should just have to add the DIC numbers you've recorded. Then you can manipulate the data in all kinds of ways and get some neat charts. I've also recorded the gallons used and the average speed each time too.I record the DIC estimate as well as the calculated estimate, so I really should put together a chart and see the correlation.