so I had a question i'm at 22355mi here and my iron levels are still 38 ppm. According to the lab that this rate is a little on the slow side... how long does it normally take and should i be concerned that my iron ppm levels are still pretty high after 8 oil changes? this was generated using the nissan ester.
I have since switched to the mobil 1 and i'll run another analysis after the second oil change with mobil 1. although i've also heard that this engine will burn pure synthetic oil...
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