Our closest scare, we were on our way to Vernal Ut. NO diesel gas stations along the way. It was mostly uphill. Getting really low and we topped the mountain down hill all the way to the next town. I put it in neutral and coasted most of the way downhill. The first three gas stations, no diesel. Finally at the far end of town found a big station we could drive through that had diesel.
I carry a 5 gallon can now. Just in case