Well, thanks for all the answers. I guess I'll just keep doing what I've been doing. That is stopping at stations that look usable to me. I've been stopping at about the half tank point. There have been times when I've pulled into a station and pulled right back out and goner to another one. Sounds like that's what everybody does. I've never had this problem before. This is the first trip that I'm not taking the trailer off the hitch at night. I'm moving from camp to camp every day, and just don't see the point of taking it off. Normally I stay longer at one site and fill my tank while I'm out and about exploring the area.