Hi Guys:
As I said Last week, I did services for my E92 M3 coz I just purchased this car and wanna it become fresh. I sent the oil sample to Gough Analytical last Wednesday. The oil change interval is 20,103 km (12491 miles).
Today I got the report from lab. Based on those numbers. It seems the rod bearing and engine condition are good, but Sodium is high as the report said. I do have the full service record of this car and it was only been serviced in BMW Dealership. And I didn't see any records about the coolant. It seems that's not an issue before.
Just wondering does anyone e9x m3 owner has the same situation before ? Or is there any suggestions for this? I have attached my oil results below.
Thanks.
