First time I’ve seen a dealer turn down money.
Is it okay to switch my CX-50 to full synthetic 5w30?
5w30 is what’s in it now, it is just Mazda oil (whoever makes it). I think it may be a blend, but no one has comfirmed.
MazdaUSA on Twitter hasn’t replied to me in a year, so I will try here.
Yes, that’s fine, just don’t ever exceed 5kmi oil change interval, that’s much more important.
5k KM is for severe usage. So it means you idle a lot or are driving the car in a hard o aggressive way. That’s what my manual says for my 2011 3. And that’s what I do. 5K Km changes because I wait a lot in idle because I live in a hot climate and need the AC on.