My closest station has it for a bit more than 93. How does the car run on it?
This is wrong . Ethonal in a turbo high performance has many benefits . Reduces knock , cooling effect and so on . Why do you think the 720s makes the most power on E85 . 85% ethonal and 15% gasoline .You want no Ethanol in your fuel.
It adds nothing beneficial to performance or helps fuel economy.
In the UK you can get 99Ron Esso fuel which has no Ethanol and is a great fuel