Last year i flew cross country from SLC. Stopped to refuel in Nebraska, just before taKe off roll the rear engine quit for some unknown reason. The take off was aborted, rear engine was restarted and all was fine. There are many things that could have caused this.
I have to admit im a bit of a nerd when it comes to reading ntsb accident reports. The ones where fuel/engine issues were involved that were inconclusive, i cant help but wonder that maybe there was a problem with the fuel. It most likely wasn't but who knows.
As i fly i will document fuel quality and update this post.