03-05-2016, 11:29 PM
It just depends on temperature of your environment. If it's generally below 15°C (60F), use 10W30, if it tends to be more above, take 10W40. It's that simple.
For me that means early spring, late autumn, some rides in winter: 10W-30
Summertime: 10W-40.
For me that means early spring, late autumn, some rides in winter: 10W-30
Summertime: 10W-40.
