I have always change to 20-50 SYN3 at 1000 miles. (in all 3-holes).....
I'm in the process of changing out the new 2019 M8. So my question is, opinions on the better oil for the trans & primary? The syn3 in the trans on the older 2001 soft tail did seam to shift smother. I did not see any difference's on the new trike.
I would think the SYN-3 In all 3 holes would be the better choice.
Opinions?????
Ride Safe............