What fluid to use for Trans Flush

[kam]

I have a 2002 and am taking it for a Transmission service (I do most service myself, but not this). The quick lube place I considered uses Dextron 4. My regular mechanic said he is not sure why they use that, but does not think it is the right choice. Anyone have any thoughts?

[07MZ5SA]

What does your owners manual say?

[OilGuy]

Correction:
I have since learned that M V is NOT Mercon V - there are other posts here that support this


I believe my 08 rec's "M V" - which I believe is (Ford) Mercon V. Given Mazda's relationship with Ford, I'd think that you could use any Mercon V approved ATF.

I'd strongly recommend against a quick lube/dealer that uses the cheapest no-name base ATF fluid they can find and tries to add a snake oil additive that will "magically" turn the fluid into the desired spec fluid.

I plan to change to Mobil 1 Synthetic ATF shortly. I find it awfully weird that Mazda has no scheduled ATF change interval for my 08 - as if they are claiming fill-for-life ATF fluid...