I keep an exact paper log of my mileage as my fuel gauge doesn't work. I went back to Aug 2014 and put in all my information. THEN I found my sheet prior to that start date. Can I put those older fill ups in now?? Will it mess anything up? (I have a specific reason for wanting to track from June 2014). Thanks
Unfortunately, it is accurate. It's a motorhome. Most all of them get about 8 mpg. Also, part of the gas usage is the generator when it is sitting still...so that's averaged in there, too. And I do very little highway driving...mostly back roads. I live in it full time. Thanks, tho'!