I run Valvoline Racing Synthetic 10-30w winter 20-50w summer. Or sometimes Mobil 1 synthetic 15-50w
How often do you change the oil? and don't say every few rides.. sometimes I ride for 1/2hr or up to 8hrs, with such varied terrain. If I were to use mileage to change my oil I would be ALL over the place. 40mi of hard singletrack around here is 8hr or HARD use with lots of clutch. But then I can cruise 40mi on slab/log road in an hour with just a few pulls on the clutch.
Edited by n16ht5, March 29, 2012 - 08:58 PM.