I toured the csc facility in Virginia today and while talking he mention that the way the auxiliary fuel tank works. He said that the way it is positiond that when the yellow fuel light comes on i have approximately 3 gallons to go. he said I have about another 100 or so miles left. This actually bothers me because you never actually know how far you can go. I would have thought that it flows along with the oem tank and just goes down at a slower rate. Does anyone this to be true?? Mine is in the shop as we speak getting converted.