Time for an oil change


My point of view

Cost benefit analysis:
Oil change on bike every 3k with Amsoil Diesel & Marine: $66
So about $180/year

Cost to rebuild/replace motor: Mucho Dinero

Just accept the $15/month as a running cost and stop any chance of oil related issues.

Even going with T6 Rotella, sure it’ll last more than 3k but why risk it?
 
At my last change before my May UK run - My mate stuck in Agip 10/60 Synth 4T again, which is specc'd for the new Guzzis, and he has loads of it.
Filter looked new. Oil a bit grubby. Probably 10K-kms

R3 does seem to run better on Agip in all weathers - though seems to make the radiator work a bit harder. I would like to see the oil temps - so one of winter's tasks is fitting an oil temp sensor somewhere.

I really do (did) no town work - no short runs and very few (as one ages) mad half hours. I cruise - fast - but steady.
How you ride matters to oil.
 
It’s the best.

Diesel oils have better additive packages than passenger vehicle oils. Marine oils even more so. Those additives are what matter the most, more than oil weight or base stock.