I just ordered two gallons of Amsoil 10W-40. I'll run 100% when I change my oil in the spring. At $35/gallon, it will be a pretty expensive oil change.
I have 2,500 miles on her. I'm currently running dino oil. I changed the filter and oil at 50 miles and again at 500 miles (or so). I used the Motoman method for breaking the motor in. The only thing I wish I would have done differently is put rare earth magnets on my oil filter from day one!
