Here is the latest oil analysis for my 162K mile Infiniti M35X. This is the first report with the Castrol High Mileage 10W-40 (previous reports were Valvoline MaxLife 5W-30), and I think I like the results. Even though the OCI was a little shorter than last time, the key wear metals look a little better, and I did not lose as much oil on this run.
For reference, no major work done on the engine during this time and 80+% of the miles are highway.
Further comments/observations are always welcome.
For reference, no major work done on the engine during this time and 80+% of the miles are highway.
Further comments/observations are always welcome.