5w30

The 2010 CX-7 2.5L we just bought says 5w20 oil on the oil filler cap. It has 145,000 miles on it. Should I still use 5w30? Thanks

This is more of a statement than a question. This is a NON scientific observation. So in my 2025 SKyactive na CX5, after much research and reading forums, I did the first oil change with Pennzoil Ultra Platinum 5w30 and NOT the recommended 0w20 AND... Ive been filling up with the Shell Nitro...

I'm wondering what the general consensus it on the brand of oil for the 2nd gen CX-9. Some swear on Mobil 1 and some stay with Castol Edge as the "dealer's recommendation". Any noticeable difference in MPG and/or engine NVH when switching between brands? Catrol Edge alone has the black and gold...