ahhhhh the bitter burning smell of a good old oil thread 'debate'. As kilgore would say, 'smells like, ...victory'
Smedly, you and others testify to using fully synth with no issues, fair enough. Others have used it and have had issues.
Myself? Being of humble mental stock and not fit to wipe the arse of a oil development chemist I tend to err on the side of caution and use 1040 semi which change every year or 4000 miles. I have a sneaking suspicion that this may be the way to go, despite my lame brain.
Imo you are at best your spending extra pesos with an oil that outperforms the requirements of the motor, or at worse your possibly hurting the motor, but alas i am not fit to wipe the arse of a oil development chemist so...
This aside, if its working for you and you are aware of the '
facts' (as they read at least) then game ball.
There is a lot of toss about oil banted about, especially on this site, even by John who vehemently preached it was bad to change the oil with lower mileage frequency. It was very bad in fact he said.
Even little me who being of humble mental stock and not fit to wipe the arse of a oil development chemist had a
feeling this was wrong.
In fairness to John when someone chimed in on the debate who indeed was fit to wipe his own arse on the topic he quoted the man.
http://www.bikersoracle.com/blackbi...?t=46575&highlight=oil+change+interval&page=2
By the by, i have huge respect for Johns contribution, his business and especially his ecumen, which at all times is both in the first person and first class.
So what my point? 'Accepted wisdoms' like the above should be challenged but genuine experience and findings should not be ignored. Smedly, you are probably the type owner who cherishes his bike and wants to give it the best of the best. I admire that but there seems to be direct and real effects to using fully synth, not all of which are good. Personally id rethink your oil choice.
Ps; I would also like to add that in fifteen bikes owned i have never, ever, had clutch slippage on an unworn clutch due to the use of a motorcycle specific fully snth oil. This is an example of
my genuine experiences and findings. But as John pointed out that is my finding and not a fact.