Ah, the oil issues...why bother with what you KNOW works??
I use Kaw 10-40 as the manual states and Kaw filters...fill to the middle of the window and change every 2000 miles. Got 21K on my ride and at every change, the oil is still centered in the window, no consumption to measure.
Now tell me WHY would I change? :?: And don't tell me about going longer between changes...synthetic oil will not keep clutch abrasives from scouring a motor if left to build up by going longer between changes. Filters only do so much.
T-man