The coach is a 2003 U295 with under 60,000 miles. Currently 13 years old, the fuel lines and air bags appear to be in good shape. At least, no leaks that I know of.<br/><br/>Next year, 2017, I plan to drive a full loop of the USA. It is very likely we will stop at FOT for the Ladies Driving School.<br/><br/>Should I have the air bags and fuel lines replaced before the trip, during the...