Oil change - will this cause issues?

[VNA]

WTF?

Indeed.

The answer is it leaves us in a minefield.

Aye :lol


Now looking at the manual for the MT10, that so far I have managed somehow to resist purchasing, it recommends;


Full synthetic
SEA grades 10w-40,  15w-50
API service SG type or higher JASO MA.


WTF indeed.


The other bit that puzzles me is, why if Yamaha are now specifying fully synth oil are we stuck with 6000 mile oil changes.
A 997 911 Porsche for example is 2 years or 20,000 miles.


Which is a thought.  I might switch to fully synth and change my oil every other year, rather than every year as I do with semi-synth.