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#4532887 - 10/03/17 10:39 AM 2008 Mazda CX-7 ATF
Matagonka Offline


Registered: 02/03/15
Posts: 469
Loc: NC
My brother has a CX-7 and I told him he needs his fluid changed. What's the best aftermarket ATF on these cars? I've read some threads on other forums that anything Merc V is good, but even they couldn't agree exactly what was needed.

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#4532911 - 10/03/17 11:06 AM Re: 2008 Mazda CX-7 ATF [Re: Matagonka]
bdcardinal Offline


Registered: 06/03/05
Posts: 10997
Loc: Santa Barbara, CA
A CX-7 would take T-IV/3309 ATF. They do not take Mercon V.
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Opinions expressed are my own.

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#4532921 - 10/03/17 11:18 AM Re: 2008 Mazda CX-7 ATF [Re: Matagonka]
knoas Offline


Registered: 11/01/16
Posts: 42
Loc: Monterrey, Mexico
I am not 100% sure of your model year, sorry..

In my case i have 2013 Mazda 3 (pre-skyactiv) that calls for M-V (Not Mercon V) i am not sure if your trans requires the same, i believe another person just gave a another spec but i share my experience just in case.

I started doing my 1st drain & fill recently using Valvoline Maxlife ATF which is compatible with M-V and so far so good.

Once you have the spec you need confirmed i would suggest checking if Maxlife is compatible and use it (Also Mobil 1 or Castrol Import ATF).

Of course the OEM fluid is always an option but it tends to be overpriced.

Good luck!


Edited by knoas (10/03/17 11:19 AM)

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#4532933 - 10/03/17 11:33 AM Re: 2008 Mazda CX-7 ATF [Re: knoas]
Miller88 Offline


Registered: 04/09/08
Posts: 12704
Loc: Onondaga County
Originally Posted By: knoas
I am not 100% sure of your model year, sorry..

In my case i have 2013 Mazda 3 (pre-skyactiv) that calls for M-V (Not Mercon V) i am not sure if your trans requires the same, i believe another person just gave a another spec but i share my experience just in case.

I started doing my 1st drain & fill recently using Valvoline Maxlife ATF which is compatible with M-V and so far so good.

Once you have the spec you need confirmed i would suggest checking if Maxlife is compatible and use it (Also Mobil 1 or Castrol Import ATF).

Of course the OEM fluid is always an option but it tends to be overpriced.

Good luck!


Not familiar with what transmission is in the III, but the CX7 had an Aisin transmission.
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#4532947 - 10/03/17 12:07 PM Re: 2008 Mazda CX-7 ATF [Re: Matagonka]
SavagePatch Offline


Registered: 05/06/15
Posts: 571
Loc: California
Maxlife ATF

If it's currently at the correct level then have him do drain and fills by measuring the amount that drains out (I use a clear paint bucket with volume written down the side).

It's easier than an oil change because there's no filter to replace.

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#4533000 - 10/03/17 01:13 PM Re: 2008 Mazda CX-7 ATF [Re: Matagonka]
Matagonka Offline


Registered: 02/03/15
Posts: 469
Loc: NC
Thank you guys.

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