We just returned from a one week trip up north, probably about 1000 miles total. Just before heading up there, I had the hubcaps off the front wheels. I put them back on, without paying attention to which one was on which side. Right away the right side one was squeaking. I had never experienced it before this. I took it off and put it back on, and it was silent.
400 miles later, as we arrive at our campground and I lower the window while we drive around looking for a site, the drivers side is now squeaking! cripes. It squeaked all week. At some point today on our way home, it seems to have stopped. I figure it has moved a tiny bit till it's finally settled. OR, maybe it was just the rain we drove through, and once it dries out it will squeak again.
We lost one of our rear covers on our first trip with it. I took the other side off. So we have only front covers. :)
We dry camped, and had to run the genset every day. Once again it ran near 1/8th tank. I have not had it run out of gas yet.
MPG was 11.x at 65 MPH, on tanks not involving genset usage.