Happens many time a year to me.
An this is an engine killer.
You have the worst luck of anyone I've ever seen on here, or anywhere for that matter. As far as I know in over 40 years of driving I've never had that happen but you have it happen "many times a year."
And I've never killed an engine, ever. Not from this and not from the 100 other things that have killed your engines. It's downright baffling to me.
Its downright aggravating to me!
It was really brought home to me when i was picking up a new Grand AM coupe stick car years ago at the GM dealer.
A mechanic was running up to the service manger yelling about something. Then I heard him tell the writer that
"this garbage gasoline at the Shell station next door (Haverhill , MA) is killing all these cars!"
Then over the years I see every station get new poly tanks.
Things were not bad during the MTBE period.
Then when E10 came around - back to the horror stories.
They even closed a HESS near my work(Salem NH) , article in the local paper talked about water in their tanks. and multiple claims of ruined engines.
When i pick up the Pontiac it wouldn't start.
But that ended up being a bad ignition cylinder.
A couple times after getting bad fuel, I have an emergency and I drive the car too hard on the throttle to get to the hospital or Veterinarian. My theory is Running the car in enrichment mode ( read: heavy throttle ) where it cannot provide enough fuel and there is no combustion feedback - will toast that engine. Plus sometime i just get mad at the whole situation and run the engine hard with the poor fuel - and that doesn't help things either.
Also I don't go to the dealer to get the fuel dumped out. as the car is under warranty and bad gas damage is NOT covered.