The Z was overdue for an oil change, at least by the calendar. The last fill went in a year ago, and the car has only covered about 1,300 miles since then. I figured a year was long enough regardless of mileage, and it was also time for the third oil analysis sample.
I grabbed a case of Nissan Genuine 0W-20 full synthetic and pulled a sample for SPEEDiagnostix during the drain. The first two samples showed the expected break-in wear, and the second looked much better than the first. This one should tell me whether the VR30 has settled in now that break-in is well behind it.
I decided to leave the filter alone this time. With only 1,338 miles on it, there was plenty of life left in it. The engine took roughly 5.5 quarts to fill back up.
I didn't drain the catch can this time, so I'll be back under there soon. I doubt it's anywhere close to needing it.
4,051 miles on the clock. Now I just wait on the lab. Time will tell!
