CX-5 NA Oil weight 0w20 or 5w30?

[Sekmor]

Is it ok to use 5w30 in my 2.5L (non turbo)??
The manual states to use 0w20 for US/Canada. 5w30 is an option if living somewhere else.
My other vehicles use 5w30, and always have a case sitting on the shelf. I'll continue to buy that special jug for the CX5 but it would be convenient if they all used the same weight.

 

[GTXT23]

Why would you want an oil made to an old spec when there is an updated one available?

(Canadian labeling)

Mazda still recommends and sells it - i get it for $5.23qt and the difference is not going to be noticeable - but if you like it ! more power to ya - if its less$$ i may go for it -
Thanks

 

[N7turbo]

Mazda still recommends and sells it

Mazda corporate or the dealership?

If I were staring down bottles of GF-5 and GF-6, or especially GF-7, I would simply take the newest. They have improved the oil's ability to keep pistons clean with fewer deposits, and have reduced timing chain wear. And of course they have made inroads into LSPI prevention. That's enough for me. There's really zero reason to buy GF-5 oil unless it's on super clearance and I only had the NA motor. But at $5 per quart, just get GF-6.

 

[madar]

Is it ok to use 5w30 in my 2.5L (non turbo)??
The manual states to use 0w20 for US/Canada. 5w30 is an option if living somewhere else.
My other vehicles use 5w30, and always have a case sitting on the shelf. I'll continue to buy that special jug for the CX5 but it would be convenient if they all used the same weight.

Yes, I started using it in my 2016 a year ago. The manual is only a recommendation.

 

[Moonlighter]

Is it ok to use 5w30 in my 2.5L (non turbo)??
The manual states to use 0w20 for US/Canada. 5w30 is an option if living somewhere else.
My other vehicles use 5w30, and always have a case sitting on the shelf. I'll continue to buy that special jug for the CX5 but it would be convenient if they all used the same weight.

Like many things, there is a preferred solution, and alternatives.

0w20 is preferred and will give better fuel economy.

5w30 is an option.

 

[madar]

Like many things, there is a preferred solution, and alternatives.

0w20 is preferred and will give better fuel economy.

5w30 is an option.

That is what is meant by a "recommendation"....

 

[Slickracer]

Has anyone considered a 0W-30? Mobil 1 is readily available.

Mobil 1™ 0W-30 Advanced Fuel Economy | Mobil™ Motor Oils

Mobil 1™ 0W-30 Advanced Fuel Economy low viscosity motor oil is engineered to help improve fuel economy.

www.mobil.com

 

[kendel7]

I hope this clarifies a bit your dilemma:

View attachment 334826
CAFE only applies to United States ( I don't know about Canada). The rest of the world doesn't give a sh*t about US CAFE requirements, for the very same car sold all over the globe, Mazda says you can use 5W-30.
The way I understand CAFE, in a very simplistic way, of course: Mazda did some lab test and they showed the results to the legislators, hey, look, if we use this 0W-20 oil we reduce fuel consumption and we comply with your bulls***. And the legislators approved it so Mazda has to put it in writing, for the consumer, to be legally covered for CAFE. But in reality fuel consumption depends on so many factors, including your driving style! Your car will never get to those lab test numbers! Or very unlikely!
So, yes sir, you can use 5W-30, no sweat! Or take this rule ( no science behind it) : do you get snow on the ground in the winter - use 0W-20. Do you live in the lower half of the US, you see snow once every few years or so - you can go with 5W-30.

This question has been asked so many times on this website and at this point I simply do not understand why. Why is this still an issue for a lot of Mazda drivers. I just don't get it.

Will a dealer put in 5w-30 if the customer requests it?

 

[ADS-B]

Will a dealer put in 5w-30 if the customer requests it?

Yes. They do it with my car, for example.