Fully synthetic or part synthetic?

[Slaninar]

Hi,
I have a Gen 2 Fazer on an 07 plate with 5000 miles.
It's due an oil change but can't decide after research on here and other sites which to use.
I will be doing around 5000 miles per annum and not bothered about the extra cost of a fully synthetic. Read a bit about poss clutch problems with using a fully synthetic?
Any body with experience of this.
All help appreciated


Many thanks

Synthetic oil does not cause clutch slippage. Car oil with anti-friction modifiers causes clutch slippage. That or bat clutch.


Fully synthetic bike specific oil is as good as it gets. I see no point in sparing a few euros per whole year in order to get an oil that is less good.


Better cold start, less engine wear, longer change intervals (less hassle with it, even cost savings) - all in favour of the fully synthetic.




Downside is it will show any weak seal - with mineral, or semi synth, even bad seals get gummed up and hold, when you put fully synthetic oil, bad seals will show and you'll have to change them, they will leak.


I'd recommend Motul 7100 10w40 fully synthetic oil. The new (as of 2014 i think) version is JASO MA2 certified - that is as good as it gets for the wet clutch!