Very good info that I haven't been able to find anywhere on some oils listed. I was very curious about the Kirkland Signature oil, since we just got a Costco membership.
After some digging, and a final decision to abandon 0w-20, I got my wife's '20 Mazda CX-5 on PUP 5W30. Glad to see it's on the lower viscosity side of the xW-30 oils. As for my '12 CR-V, my summer oil this year is currently PP 10W30. I'd love to see how that compares to the other PP oils. Winter oil is going to be the same as the wife's oil.
What I find very interesting though, is that the viscosities of 0W30 actually make them better candidates for summer oil than winter oil. I'm seeing that 5W30 viscosities are for at least the old I'm looking at, better winter oils. We are in central Virginia. We see 90+ F temps in summer and as low as 15F temps in winter.