Quote:
Originally Posted by Biker_Billy
Maybe, but not in all circumstances...
I do a regular trip from Cornwall to Yorkshire - 330 miles each way, almost all motorway / dualie. If I use 97ron in the Audi, I tend to get 470 miles to a tank. If I use std UL I get 430. I don't notice any difference in performance, but the range improves.
Happens every time I try it.
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Does your Audi have a knock sensor? ...
As for your pocket, is/was the Super unleaded <9% more expensive?
