Haven't noticed any real difference between optimax and ultimate although i do seem to be getting slightly worse mpg with bp - and it's more expensive
LMAO @ Rallye!! "Or you can just wait for Shell to do it and copy it once you have missed the bandwagon." Tell him how it is fella LOL!!! Thing is, don't Shell already have a 100RON fuel? Isn't it called V Power or something, but curently only available in Europe.