Hi Reza

You are correct for the auto trans of the MAZDA CX-7 2011 PETROL 2.3 Turbo 4 Door SUV AUTO/ (AWD) 175kw L3VDT Direct Inj ER we do recommend ATF FS (Full Syn.) which does quote JWS 3309. It is interchangeable with the product made for Mazda and locally manufactured.

Cheers

Costa

Penrite

Hi Reza

One way to remove a larger portion of the old fluid would be to do a number of fluid changes with short drives in between that go through all the gears. This way you have diluted the old fluid that could not be removed with the previous drain with new fluid. If you do this 3 or 4 times you should have removed over 90% of the old fluid. 

Remember to follow all necessary procedure/steps for each fluid change. 

Cheers

Costa

Penrite

Cheers Reza