Have decided to take a conservative approach to this, the M110A filters have always tested in the UOA'S as effective, so going to stay with them. Have had a long successful run for many years with Mobil1 0W-20 AFE so going to run this change to about 4k & do another UOA, after 15k, the wear metals should start to lessen and OD isn't that bad. The viscosity drop concerns me, so if it is still marginal after the next UOA, I'll probably try Mobil1 0W-20 EP which is supposed to have a more "robust" additive package. As I have a Hondacare 120/7yrs extended warranty, I'll stay with 0W-20 as per the manual. I'll try to update after the next UOA. Appreciate everyone's input and experience.