cusso ken
Living Legend
I would run 91 but all the 91 around here has 10% Ethanol and I just don't trust that stuff ,I run 95 or 98 for piece of mind.I just checked my manual for my roadster and it states 91 only, I asked my dealer and he said never use 95 they have an additive in it that they hate and will cause damage if used all the time, he went on to say that 98 is ok but a waist of time and money. I have used 91 and it's fine and 98 and there is stuff all difference in it but I must say I run 98 bp as it's a cleaner fuel and it runs cooler.