Was empty and drove by a Sunoco that was selling race fuel so I bought 3 gallons, $23.00 later, ouch! 100 octane. I can get 110, but can't put it in the car, only containers.
But what a difference, it was a blast to drive. No more 5500 to 6K drop. Pulled hard all the way to 6500.
It makes me think my current timing is to far advanced for 93 octane with the 5500 drop?