YOU THE MAN, BADEYE! GREAT IDEA AND I WILL BE FOLLOWING ALL INPUT, THANKS! HERE'S MINE:
2002 HR Vacationer 36DBD, W22 Chassis, 9000 miles and going since I just recently retired.
Breakdown: While traveling from Las Vegas toward Yellowstone in August, in weather that was extremely hot, 114 degrees and had been so for several days. Stopped in St. George, Utah and filled up with gas. It's mid-day and very hot. Started up the grade from St. George toward Cedar City and had a significant amount of gas blowing out from under the coach. Local fire department responded since the temperatures were so extreme. In the end, several locals lectured me about not ever filling my gas tank to the top in such weather conditions. Don't know if that's what happened for sure or not, but had to wait in Cedar City for 3 days, until the local Chevrolet (workhorse rep.) could check all the lines and the gas tank. Supposedly found no significant problems, just tighted up all the lines, including of course the return line. Wrong or right, I haven't filled the tank to the brim since this incident and it hasn't repeated itself. Thank goodness, lots of gas and high temperatures are scarey.