here we go:
I've since been told that previous fuel shouldn't make that much difference and that the deposits would be burnt off after several tank fulls of different fuel.
So thats Shell 95Ron....strange as they must have changed it recently as last time I pulled the plugs on my Impreza they were normal (and that also ran on Shell 95ron from the same petrol station) although maybe shell have chnaged their 95ron as well, like they did with opitmax to Vpower? Hmmm
