2007~2015 CX-9 Transmission Drain and Fill

[Dre3511]

Bought a 2008 cx9 w/148k a couple of months ago. With very few service records and information about transmission service, I went ahead and did its first drain and fill. The fluid is scary lol. I was experiencing weird shifts and sputtering sometimes in 4th and in 6th once in awhile. Now, after 1k driven, it seems to be much better, and I hardly feel things past issues(wife says). I'll be repeating the drain and fill every oil change at 5k miles till it's a good-looking red again.

Lastly went to Mazda, and they wanted $18 A quart for that bottle. $51 on Amazon for a 6 pack. There was a coupon!

 

[Lazy2.5]

Awesome! Yes, that fluid is dirty.

Are you planning to drop the pan? I certainly would at that mileage.

I would suggest going ahead with 2 more drain and fills sooner rather than later, or to drop the pan.

 

[Dre3511]

Awesome! Yes, that fluid is dirty.

Are you planning to drop the pan? I certainly would at that mileage.

I would suggest going ahead with 2 more drain and fills sooner rather than later, or to drop the pan.

 

[Dre3511]

Yeah, I agree I will probably do one more before the next oil change since I'm a lucky one with the actually dipstick setup and it was very easy.

For dropping the pan Im on the fence with that. Still uncertain if I have a filter that's easily replaceable and I kinda don't want to deal with gasket marker, cleaning and potentially creating a leak that I currently dont have

 

[Lazy2.5]

Yeah, I agree I will probably do one more before the next oil change since I'm a lucky one with the actually dipstick setup and it was very easy.

For dropping the pan Im on the fence with that. Still uncertain if I have a filter that's easily replaceable and I kinda don't want to deal with gasket marker, cleaning and potentially creating a leak that I currently dont have

Well, dropping the pan is the right thing to do at your mileage, and I think it's worth it if the rest of the car is in good shape and you plan on keeping the car. Perhaps you can consider having a mechanic do it. Replacing the filter should be easy but, if you still decide against it, that's... Fine. Just make sure you do two more drain and fills in the near future to get the most of the dirty fluid out.