Just purchased a ES350 2009 @40K from wife's friend who was NOT religious in changing the oil based on time but changed it every 5000miles.
This is what I know so far on the OCI.
Lexus dealer : 32K June 2015
unknown 3rd party: 37K unknown
Myself : 41K Sept 2017 (Mobil 1 5W-30) + Toyota oil filter
My mistake, the oil collection sample was at the very end of the oil change. ( I had to run in to get the bottle ).
It took me a while to fill the bottle.
Should I be concerned about the higher than average copper?
I have a Venza V6 (same engine model) 2014 and the copper level is 1 or 2 ppm.
This is what I know so far on the OCI.
Lexus dealer : 32K June 2015
unknown 3rd party: 37K unknown
Myself : 41K Sept 2017 (Mobil 1 5W-30) + Toyota oil filter
My mistake, the oil collection sample was at the very end of the oil change. ( I had to run in to get the bottle ).
It took me a while to fill the bottle.
Should I be concerned about the higher than average copper?
I have a Venza V6 (same engine model) 2014 and the copper level is 1 or 2 ppm.
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