this is some of the best, most easy to digest, info on oils I've seen.

So much for superiority of Mobil 1.

Gundo

[media]http://www.lnengineering.com/oiltest.pdf[/media]

 

Charles of LN Engineering and I have talked extensively about the subject, and if you want the best for your motor, go with either the Mobil1 10w40 motorcycle oil, or the Motul 600v 5w40, which is what I personally use. On my next change I'll probably use the Mobil 1 V-twin 20w50 as it never gets that cold here and provides more HTHS shear protection.