Originally Posted by Robster
FYI, I just sent a UOA sample of Valvoline Advanced Synthetic 5w-30 to Blackstone early this week. I'll hopefully have the results next week. The sample was pulled during an oil change on my '19 Hyundai Santa Fe 2.4L (4237 mile OCI). If the UOA looks decent, I'm gonna stick with Valvoline going forward. I'll post the UOA as soon as I get it. My wife drives this vehicle 99% of the time for her work commute, with about an 8-mile commute on the highway, to an exit to a city environment with stop / go traffic for about 10 minutes each way. This oil was used from 3/15/19 to 8/17/19. On weekends the Santa Fe gets used for the occasional 50-100 mile excursion. No oil was used / added during the OCI. Sump is 5.02 qts., oil filter was a Fram XG9688. FWIW, upon draining, the oil was not terribly dark. . .maybe a coffee-colored brownish color, but far from black. Stay tuned!
Thanks, look forward to seeing it. My commute is similar. It's about 7 miles one way. Winters are tough on the oil.