One of my brothers never used Pennzoil but has the idea that it is no good. I've used Pennzoil for 40-some years and have never had an engine problem - but he has with the oil that he uses!
I still use Pennzoil in the truck with 120K on it; change oil & filter every 5,000 miles. I am using Mobil 1 synthetic oil in the Camry; change synthetic every 10,000 miles.
We don't have to worry about condensation here in the low humidity of the desert.