wondering about oil viscosity?
The service manual states 10W-40 is the default recommended oil viscosity however on the chart 10W-50 actually has a wider acceptable temperature range. Would 10W-50 not be a better choice because I would imagine it would work better for the transmission? Thoughts? My bike normally operates in temps ranging from -2C/28F to 32C/90F.
As per service manual:
10W-40 (-10C/14F to 40C/104F)
10W-50 (-10C /14Fto 40C+/104F+)