I know this is an old post but for any other forum members that may check it. The CFmoto gas gauge, isn't exactly reliable, meaning, it will show empty, but if you pull the cap and look in the tank, it could still be half full. Here in the northwest riding in steep rocky terrain in 4 low, and once in a while hitting 2 high, we can go around 60-75 miles on a tank. But i have now modified both our atvs with extended range tanks. I did this, because, last year we were on an Alltrails app loop and we took a wrong turn. That wrong turn took us down this very rocky steep grade. We were zoomed way out on the app. Anyhow that mistake took us an additional 40 miles off track because we couldn't get back up the hill we came down. Nothing to winch to in the desert. We had a 2.5 gal gas can and a 1.3 gal rotopax. We made it back to the truck just as one of the atv's ran out of gas loading it onto the trailer. Not a good feeling. Later using a 5 gal gas can in the heat of summer, totally not safe. The extended range tanks have been great for us and we have now used them on three trips. Very nice when you are overlanding on ATV's in the wilderness and have long stretches between gas stations.