Here is the UOA for my 2004 Lexus ES330 running AZ clearance Valvoline Syn Power 20w50 for 5778 mi. Good TBN retention, no sodium and wear metals exual to the recently posted VOA of Shell Rotella T-6 Multi Vehicle 5w30. Engine continues to produce exceptionally low wear metals on Valvoline (and other oils as well) and this 20w50 is no different. This run was done with one of the Rock Auto (counterfeit) Toyota Copy oil filters. Commute is still 110 miles daily and the car averages 22-25k/year.
Enjoy

