Patrick0525
Thread starter
Gotcha, thank u again.In my Element and C1500, tons, filters were black when I cut them open but they were not maintained well by the PO's. My Expedition that was religiously maintained w 3k oci's by the PO, the filters were clean and looked new. I changed filters every 1500-2000 miles on all 3.
I am re-posting the EC uoa. The oxidation is high and is expected for a cleaner. Typically, the oxidation baseline is around 20s for non-neglected uoa or a voa.
HPL EC voa
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