I'm a bit of a newb but I do have a question about this after buying both HPL EC 30 and their PCMO 5W30.....A full sump of HPL PCMO cleans more aggressively than 1 quart of EC. Using only 1 quart of PP PCMO, the ester and AN content will be much more diluted and not as effective.
Aside from cost, why do the HPL EC along with an off the shelf oil like M1 to "clean" if their normal PCMO 5W30 in 4.5qts for a full oil change would clean better?