"When oil fields had primary frac towers all over the place (pre EPA and such) there was a waste product they drained off the towers and gave away. The pumpers all called it 'drip gas', although it was gasoline only by association. Nasty stuff, and there was no guarantee your vehicle would actually run on it. We usually filled half the tank with gas then topped off with drip. Not the best way to treat a vehicle but, hey, it was free."
Heh. Missed that. I guess my browser is set to not refresh a page.
Anyhow, those old vehicles had a timing lever on the steering column. I guess you could just retard the heck out of it to make the engine run on 55-octane gas. You also had to retard the spark to crank-start it.
I gave up on white-gas stuff a long time ago. I don't go camping any more, but I've got a lantern and a small barbecue and a two-burner stove that burns propane... just in case I have to camp "in the house" I'm also set up with a small inverter to run a small TV for news and warnings... this, besides the radio.