This would be tested after 1 year, which is 9-12k for me. Depending on how it looks, I may go for a 15k run if a UOA supports it.
Most of my driving is highway, although there is frequent rush hour stop and go traffic conditions.
Car has a 5 quart sump, and seems fairly easy on most oils, factory OCI is 7500 miles/7.5 months. I've run a Pure1 oil filter for a year before, but it was for a lower use application; it physically looked fine at that time, so I may grab one of my Pure1's for this. Or may go get a heavier duty filter.