I have used TSC travelers oil and other fluids for probably 20 years now. Sometimes I will use Napa, but mostly TSC. Not sure who makes it and don't care as long as it has starburst and meets or exceeds what API requires which it does. Usually pretty good prices at TSC also.
2009 Sonata :189K
OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.