Quote:
Originally Posted by MaestroAl
If your engine is designed to run on 95RON, run it on 95RON because 98/99RON will never pay for itself and makes absolutely no sense whatsoever. If your car is tuned to use 98RON then use 98RON. Simples.
There was a big thread about this recently with lots of real, factual info in it rather than "I use posh because I have a nice car"
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Spot on,all the guys in the states said use highest ron/octane in my 550i F10 M Sport, when I opened the fuel flap it said
95 RON thats what it got and it flew.