Switched to 5W-30 from 0W-20

[cz5gt]

IMO… in the end regular scheduled oil/filter changes are going to play a greater role in longevity rather than losing sleep over 0W-20 or 5W-30 or using the latest spec.

Yes. I have looked at carfax records of many CX5s over 120k some up to 200k (both turbo and non turbo) and almost all had regular 5-7000 miles oil changes. Some changes at independent shops some at dealer. Which means they used whatever oil.
Skyactiv G is very good engine and doesnt mind the oil brand or type as much as other car brands.