What is everyone running fuel wise in the mk7 st?

I know the focus st doesn't like lower than 99

95 Ron for the fez most are using that but I do know a few that are using 99 Ron and on a standard car IMO is a waste of money

99 is only gonna benefit high performance engines, MR200 and above I would say

I tried 99 for a few refills in my fez. Didn't notice any real benefit in either consumption or running. Only saw about £10 a tankfull extra coming from my wallet.

exactly

That's fair enough

Is the mp215 mapped to run 99?

No mp215 isnt mapped to 99. I think any performance car should run on decent petrol. I use to notice it lasting longer & when i used to play up with my mates 328 i used to be level when i was using 99 but he pulled away a little using 95. This was in my mk6 i think it makes more difference with a turbod engine.

Its only £2.80 extra over 35 litres

The gains don't outweigh the price, unless ur in a proper high performance car it's not worth it

I disagree, worth it for the better mpg alone

I think I might give them both a go when I get mine and see what differences there are.

based on my current mpg of 32 and 22000km (13670 miles) per year, that difference of £2.80 per 35 litres would cost me about £160 a year

Ok its not much over year basis, but its £160 I would prefer to spend on other things than a few more Rons in my fuel...

But 1-2 better mpg would make it more cost effective.

im with Jack, my mpg noticeably went up running 99 and it only costs me on a totally empty tank £2.25 extra.

I will prob run mine on 99 from day one. That way I won't notice the extra price and think what I'm paying is normal