Originally Posted By: NHRATA
Why do Valvoline and all the house brands, like Napa,carquest, and O'Riley all use sodium. Are the a lower quality oil? It just seems odd that all the other companies don't put sodium in their full synthetics
Mobil uses sodium as well in some of their oils for example Mobil Super 5000
I don't see any reason to draw a correlation that Sodium makes a lower quality oil. Plenty of good UOA posted on sodium oils, Valvoline routinely produces excellent UOAs.