Aviation gasoline has ALWAYS had a different formulation than automobile fuel.
The octane rating DOESN'T transfer 1:1.
Sure. Things will run on it. But it has drawbacks long-term.
Discussions on NORIA or BITOG are a start.
Back in 1976 I filled a 5,300-lb V8-440 Chrysler Town & Country with 115/145 octane aviation fuel. Made a 110-mile run from North Dallas to Lake Tyler in just over an hour (55-mph speed limit). I kept the cruise at just above 120-mph after any decelerations, etc.
Leaving town passed a guy doing 60 or so in a brand-new ‘77 Corvette just as I was nearing the 3rd Gear WOT shift point. He floored it, so I stayed on it as he wasn’t about to get blown away by Mommas station wagon . . . but he was. I hit that 92-mph mark and we started accelerating all over again. (Buh-bye hairy-chest disco king)
Made the return run a few days later with six guys in that wagon. Had three brand-new V8-460 Grand Marquis owners been gambling out at Shreveport. Kept irritating me by passing then slowing. Wheezing Fords. Finally, just settled in to a 96-mph cruise and they faded from sight.
Dialed the advance mechanisms back and re-set the part-throttle back to stock. Plugs were “clean” but toasted. Slap in a new set, and back to Regular.
I ran that old beast harder than that trailer towing. WOT for more than 20-minutes climbing La Veta Pass. Etc. Plugs looked like they should.
Do some investigation.
