Thanks Michigan Camper for saving me the trouble (Hey, I guess it's true, Smart people in Michigan)
I will add, I have been to exactly TWO Flying-J's that did not have RV pumps.
1: Was a brand new purchase, "J" had bought it like that month, it is in Benton Harbor, MI by the way.
The other (in California) HAD Rv pumps all right but they were doing major work (I think a tank repair or replacement) and thus all the gasoline pumps were out of service at the time I visited. (This rig is a gasser)
I have seen one rig that absolutly could not get into the RV pump lane.. this was a big (like 40+ feet) motor home pulling a travel trailer. Over 75 feet bumper to bumper (Clearly illegal, way over max length for vehicles) this was in Ohio by the way.. He was headed home to Canada (had picked up the trailer for his son)
He did, however, fit in the regular auto lanes, the roof was well voer 13' high.
Home is where I park it!