Nice trick, I could see using it in desperate situation where I was out of other options, but you might want to consider that the oils and greases in some of the products you might use may attack the rubber of the tire. WD-40 might not attack rubber, probably wouldn't do it any good, but I'm suspicious about the ether in the starting fluid.

My worry is that if it does any damage it is being done from the inside out. The tire may look fine right up until it ruptures. Have you ever been driving a car at 70mph and had a tire blow out? I had a tire shed its tread and it was all I could do to keep it under some measure of control, shiny-side-up, and out of a very deep ditch. I hate to think if it had happened twenty miles earlier when there was heavy traffic and we were on a bridge.

I guess if I had an unseated tire on my car, no spare and a forest fire, or other impending doom, bearing down on us, I would use any trick I could conjure up to get me and mine to safety. But I would also be interested in having the tire unmounted, inspected, cleaned up or replaced as needed, remounted and balanced ASAP. I would be far less concerned if the tire was off a farm tractor or wheel barrow.

Getting a tubeless tire to seat can be a trick. I have generally lucked out when the tire pretty much seated itself but I have had occasion to used some contraption to apply pressure around the tread. At various times I have used: a strap clamp, a web type load binding strap and, out in the sticks, a piece of 1/4" rope wound round the circumference several times and tightened with a winding stick. Just a little pressure to get the bead to meet the rim.