Mazda responds 5w-30

[madar]

We are all well aware, what's stated in the owners manual is regulated by CAFE for 0.2mpg fuel savings, NOT based on what the engineers designed the vehicle around.

It's helpful to know what the engine is actually specified for, and , to consider the statement: "tight engine tolerances" as complete and utter bull, and to stop worrying about using 5w30 when the engine was clearly designed for weights beyond that. 5w30 is also a weight that was pushed by CAFE not very long ago, actually.

As for actually going beyond 5w30? I'd run 5w40 or even a 10W in hot weather. Done it before, would do it again.

That's not what I'm talking about. I'm talking about the differences between the oil chart from 2016 versus the one in this post. There's a half dozen new oil grades which aren't CAFE oils on your chart. All of a sudden Mazda is giving its blessing for these grades.

 

[CrazyHippie]

go to walmart buy 0w20 get the reciept photo copy it and then return it and get the oil of your choice.

Yep. And if asked, tell the Truth. "I bought 0W-20 for that oil change." Reciprocal honesty is the best policy.

 

[joc1394]

2025 CX-5 2.5T here. My cap says 5w30...
You could find a wrecked turbo and swap caps after you fold over the page in the back of the manual with the oil recommendations for the turbo. My manual has recommendations for both 2.5 N/A and 2.5 Turbo, it would be easy to get confused...

 

[nickswhip24]

go to walmart buy 0w20 get the reciept photo copy it and then return it and get the oil of your choice.

you sneaky dog-thats good

 

[nickswhip24]

The maintenance requirements for severe driving conditions represent a higher standard of care for the same engine. It would be difficult for Mazda to deny warranty coverage on the ground that the owner has been more careful/diligent than most.

eh,i got that from toyota with a 2011 camry-they had sludge problems and i was told i wasn't covered because i did proper maintenance-i changed out 4 oil sender switches ,paid someone to pull the bottom end of engine apart...good oil pressure top and bottom and kept getting low oil light...
i got the car used so i was screwed-yes ...i had all my receipts for self maintenance and still got Nada