[BobS]

4X4Poet,

I've seen a couple of suburbans with what looks to be a factory installed auxiliary fuel tank on the driver's side that filled through a filler neck similar to the one for the main gas tank. I didn't get to see if it was listed on the glove box option sheet though. Another member from California reported seeing dual auxiliary tanks with the same setup in a salvage yard. Not sure where the filler neck came out on the passenger side on that one, it was gone before he could get pictures.

Bob