On the subject of RON (who the f**k is RON lol)
I have been using the normal unleaded stuff for a while, well since it was cheaper to buy ale than petrol!
last night at RAF brize norton my petrol warning came on and i knew i have another 20 odd miles in her to get to the petrol station
Filled up with BP ultimate 98 RON.
It makes such a difference on how the engine sounds/performs
AND for some reason when i sit at 70mph + ~10, i get better MPG than i did on 95 RON
normally at around 80 i get 34 MPG
Now i get 38 MPG, so i think i will be sticking with BP ultimate from now on