I've been running Castrol Syntec 0w-30 (European Formula) with an Mobil 1 filter in my 2004 Sequoia V8 for the past few oil changes with great UOA results out to 10,000 miles. My wife was driving about 50 miles roundtrip to work four days a week plus weekend traveling so the miles piled up quickly, but now that she's only working two days a week it will take a little longer to put on the same amount of miles.
My goal is to choose a less expensive oil that I can run without worry to about 7,500 miles with the Napa Gold Filters that I have a case of.
I've been away from the forum for a while but I'm thinking that I can't go wrong with Mobil 1 Extended Performance or Pennzoil Platinum or Pennzoil Ultra.
What are your thoughts. I don't plan to do a UOA to prove whatever oil I select. I don't think it's worth the money with a known easy on oil motor.