Originally Posted By: Sushibar
Anybody have a guess on why the oxidation went up 700% vs the Delvac 1? Pretty much the same driving all the time nothing unusual or abnormally different.
Most likely the oxidation numbers did not go up. Did you send a VOA along with your UOA? I had this same issue with a CAT lab back east. I ran AME 15W40 for 15000km's and had sky high oxidation. When I called the lab, they told me they simply had nothing to compare the oil to. I sent them a voa and they re-ran the sample and it looked normal.