Pennzoil has never been a champion of rolling out oils quickly through their distribution network.
I purchased a 2010 Camry and couldn't find a Pennzoil 0W-20 of any kind until a couple years later.
It was TGMO during that period.
On the plus side, 0W-20 PP is outstanding. The Camrys just love that oil and deliver smooth and quiet operation with a discernible gas mileage premium.
I know, I know. No one really sees improved gas mileage from a fuel saving oil. But I'd swear it's there compared to PU 5W-20 and TGMO 0W-20 in the same car.
My 4 cyl. 2011 Camry averaged 31 MPG on a recent trip to FL. And my son was using the A/C for the whole time. On that same trip, 29 MPG was the best I could eek out with 5W-20 PU.
For some reason, dino Havoline 5W-20 is pretty miserly too, yielding 31 MPG on that same 1200 mile trip.