anybody no what number oil filter the rev4 uses idealy the hi flow number? also what oil are you guys using 10/40/50 semi fully etc? all the best

HF207 innit..

ok cheers il see if i got any of them in stock, any ideas on oil i no the manual says 15/50 but i was thinking 10/40 or 10/50 fully synthetic?

I used silkoline Pro4 15w-50

I use putolene 10/40 fully synthetic. Change mine every 3 trials. Change my filter at the same time. Don't forget to blow out the the little mesh filters at the same time with some compressed air. regards gareth