Yeah, the manual for our CX50 says “recommended” oil is 0W20 and goes on to state that 0W20 is “required for better fuel economy”.
Other than USA and Canada, 5W30
So there’s nothing in writing that says that 0W20 is “required” for anything other than a marginal MPG difference.
I almost went with a 5W30 for the first oil change, but I had a 5 quart jug of Mobil1 EP 0W20, so I used it.
We’re going on a 2 week road trip through the Southwest in July, I’m not worried about the 0W20.
I do OCI’s of 5k/6months, whichever comes first. So I’m not really too worried about fuel dilution either to be honest.
I still may have a UOA done after the next OCI to see how the 0W20 is holding up in that regard, just out of curiosity.