What oil?

[Ward P]

I've always been told to change oil filter at every oil change, and change the oil often. I change my oil every 5000km or less. I'll also change it if I have a big ride coming up - over 1000kms or so. I'll also change it before a track day - because it's gonna spend most of the day up and around redline. I change the filter everytime, and have been running motul 5100 for the last few years, but have just got some full synth off Ray, so I'll give that a go next. Oil is cheap insurance for your motor, as long as it's decent oil, I don't think the brand is anywhere near as important as the frequency of changes.