Filled it up with Shell Optimax, which is 98 RON, which cost about

 

The flag under your name suggests that you are American, but your post would indicate that you are in Europe (UK?). It might be more relevent if you posted this in the UK forum. Your RON rating for fuels means very little to most people in N. America.

 

Yeah sorry, both my first posts went to the wrong place. The administrator should put them in the UK forum. Thanks.

 

I think you can just close this one yourself using the "admin options" at the bottom of the page and go start a new thread in the UK forum.