Originally Posted by beanoil
Originally Posted by Diesel12
Rotella T6 5w-40 is available everywhere and its cost effective. Schaeffer makes a good V-twin oil for bikes with wet clutch.
https://www.schaefferoil.com/vtwin-oil.html Seems to be really popular on harley forums.
No and no.
5w40 in a common sump has a tendency to shear rapidly, and the Schaeffer is not for clutches with fiber plates. It is popular on Harley forums because they are not shared sump bikes (for the most part).
Rotella 15w40 is probably the most popular cheerleader from the diesel side of oils. Valvoline Premium Blue is good but I found a different clutch feel with it. Grabby. Someone will chime in about Delvac... I don't care for it all after the CK-4 reformulation. But if that's all there was... fill and ride.
Valvoline MC oil is effective and cheap.
There are a couple of folks here that like VR-1 straight 40 weight in common sump bikes. No shear, very good performance. Currently 4.99 a quart at NAPA. That will be the next fill in my out of warranty Can-Am Spyder (dry sump, hydraulic shift, wet clutch).
Did you even read the description?
Also to you VR1 recommendation again if you read it clearly states VR1 is not recommended for Wet Clutches.