We bought this as a CPO with 57K miles, all services were done by dealer and documented. Looks like it had 7500K OCI's at the dealer, I have moved to 5K OCI's at dealer and would like to inquire about moving from the Toyota oil or stick with it. I would like to keep this vehicle for the long haul as it was immaculately cared for. I don't know what flavor Toyota uses for their oil other than the weight, I don't mind spending a few extra bucks for whatever would be the best for the long term. We will get the oil changed at the dealer today then I will do a few UOA's before I change it again myself. I wanted to keep everything performed at the dealer for awhile in case anything went wrong, but plan on changing the oil myself after this service.