Valvoline just won't answer the question. Apparently Jason Fenske couldn't get an answer either.
In reducing IVD's, you want low SA, low volatility. Valvoline ME has a higher Noack than their other oils @ 12% and does not report SA like the other oils. As mentioned before, I have a feeling that this oil is designed to have higher Noack (12%) and somehow clean via its possible ester content.
Oils like Mobil 1 have a lower Noack (ex - M1 0w20 EP 10%) and a SA of .8. Different approach.
In reducing IVD's, you want low SA, low volatility. Valvoline ME has a higher Noack than their other oils @ 12% and does not report SA like the other oils. As mentioned before, I have a feeling that this oil is designed to have higher Noack (12%) and somehow clean via its possible ester content.
Oils like Mobil 1 have a lower Noack (ex - M1 0w20 EP 10%) and a SA of .8. Different approach.