When refueling this vehicle, the gasoline does not flow with ease through the intake tubes. it backs up, overflowing the filler pipe, spilling out or shutting off the gas nozzle repeatedly. it can take ten minutes to put ten gallons of gasoline in the tank. there are many other owners having the same problem. it has happened almost every time we put gasoline in the tank. not just one incident for sure. this is on the chevy express 3500 which has been made into a 2009 roadtrek motorhome versatile 210. *kb