Using 2qts each, Valvoline VR-1 Synthetic 20W-50 and 10W-30. Viscosity Calculator puts that at a 15W-39. I am calling that a 'low 40Wt'.
Oil ended up a low 40wt so I am quite happy with this oil and report. Looks like a good BMW camhead oil.
Oil ended up a low 40wt so I am quite happy with this oil and report. Looks like a good BMW camhead oil.