Onrecess

Yeah, I have done what Mark B said several times when I was trying to set up the door code.

First, the chance of the fuel cap I never use being magically loose doesn't exist. Second, my 2003 Sig manual says NEVER fuel both sides at once, it will spill. I thought my Guage was bad first few times out. I filled one day and the next stop my computer said I had over a quarter of a tank. I then ran out of fuel. That is when I started tilting. Now I have a real 150 gal tank. I have never lost a drop from the vent or either cap. I would not fill it that way and park in the sun. I doubt if expansion would run fuel out the vent, but I don't fuel right before arriving. Look at the tank design. Without standing the rv on its side, there is always going to be a large air space with no fuel. The tank is a 150. That allows for a percentage of expansion room. I don't go crazy tilting, I did the first time and it took 30 extra gallons, probably putting me closer to 160, (I had run out and got approx 30 gal) I tilt down on pass side or up on drivers, not both. By all calculations since, I am filling close to 150. That is including the extra 20 or so the tilt adds. Putting 150 gallons in a 150 tank is a no brainer, it was designed to hold that and be legal.

I have a 2003 Sig with a 150 tank. It holds about 120 level. If I tilt the heck out of it, it takes another 25 to 30. As far as the fuel pumps, truck stops have bug nozzles that stay in and fill much much faster. The skinny gas station's you have to hold the whole time. I have a TSD card, so the 15%plus discount drops to the cheap gas stations. The fuel is used pretty fast at a truck stop, so I hear it is cleaner, as all the crud settles in a tank if it sits a long time. At any rate, a fill up 4 or 5 times as fast gets my vote.