Originally Posted by concours
For the love of all that's sacred, why wouldn't you use a MOTORCYCLE specific oil and be sure the anti-wear addatives your EXPENSIVE engine needs are contained therein?
You'd seriously skimp on $10 difference in the price of 4 qts. of oil for a $15,000 bike?
Umm... 'cuz it's his bike & his money?
Just look the other way if it's that objectionable.