Oh, none of that was intended at you. Lol, sorry for that. My distaste is to the guys who call themselves "engine builders", then put something together that blows up and blame it on something irrelevant, when it was in reality their own fault. In working with or around these guys I just get kind of disgusted of it at times. (Most of them)
Kind of like another thread where a guy said he kept spinning rod bearings on an SBC going down the highway; the "builder" told him it was because he was "driving too fast". (Guess he doesn't know about all the SBC's screaming wide-open in boats, dumptrucks, circle track cars, etc.
)
My point was just that the ethanol content of gasoline doesn't cause something to blow up. Sure, you cracked some pistons, but the same thing would have happened with "pure" 87, too.
Interesting that your new Wrangler pings, though. I thought everything today had a pretty sophisticated computer controlled anti-knock setup that keeps the timing right below the ping point?