Chevron Delo heavy duty oil
I had a lengthy discussion with an oil industry veteran who recommended Chevron Delo heavy duty diesel oil specifically for the Ducati because it has an excellent additive package. I decided to switch from the Łber-expensive Shell "synthetic" to the Delo and see how it went. After running it for a year I've had no problems, and the transmission is smoother and quieter. I run 10W-40. Bonus: It's cheap as hell and Wal-Mart carries it in gallon containers.