First transmission drain and refill at 83K?

[Patman]

Is it really a thing with modern transmissions where they don’t recommend changing the fluid if it’s never been done and has high mileage on it? I thought that was only an issue with much older transmissions from decades ago?

 

[Elkins45]

Is it really a thing with modern transmissions where they don’t recommend changing the fluid if it’s never been done and has high mileage on it? I thought that was only an issue with much older transmissions from decades ago?

Automatic transmissions are pretty much a black box to me. I didn't buy my first automatic until 2017.

 

[Dave Hess]

Here is the ATF RockAuto sent me. The cap looks similar to Mobil type of bottles.

I will do a drain & refill today, next week do another.
Mazda needs 3.5 quarts to refill.

 

[Plawan]

I'm considering a 2014 Mazda CX-5 with 83K miles. The Carfax has a solid history of oil changes and two brake fluid flushes but no transmission service. I understand this Skyactiv six speed actually has a dipstick but it's hidden under the air box and bolted down because it's "lifetime."

Would you do a drain and refill for the first time at 83K or is it too late and just let it ride? If I buy it my inclination would be to get some of the old fluid out and some new in. but i could be persuaded that's the wrong idea.

Yes, I would do 2 or 3 drain and fills spread out with a thousand miles or so in between each to be sure to not potentially cause excessive cleaning at one time but slowly replace the fluid.

 

[panthermike]

I would! Did the first service on our CX-9 at 60k. Fluid was dirty but not horrible. I used Ravenol with no issues but the Aisin option is appealing, especially for the price. I did 3x drain/fills in a weeks time. At 88k now and shifting as it always has. Likely do another drain/fill by 100k.