2016~2023 Transmission fluid

[Bolini]

Bought a 2016 with 109,000 miles. Went to drain & fill transmission fluid. Looked like level was to the top of the dip stick, appeared to me there was to much. 4.5 qts came out and I refilled with 4 qts. Level was close to correct. Fluid was a deep red but replacement fluid was blue, is this a problem? What should I do at this point?

 

[N7turbo]

Bought a 2016 with 109,000 miles. Went to drain & fill transmission fluid. Looked like level was to the top of the dip stick, appeared to me there was to much. 4.5 qts came out and I refilled with 4 qts. Level was close to correct. Fluid was a deep red but replacement fluid was blue, is this a problem? What should I do at this point?

To confirm: you measured the level at 122°F? Need an OBD device to monitor the temp.

Yes, fluid should be blue. Only way it would get to red is if someone replaced it with the wrong fluid.

 

[Bolini]

To confirm: you measured the level at 122°F? Need an OBD device to monitor the temp.

Yes, fluid should be blue. Only way it would get to red is if someone replaced it with the wrong fluid.

Replaced at normal operating temp. Does the half/half mix now create a problem and should I have a shop flush & replace?

 

[N7turbo]

Replaced at normal operating temp. Does the half/half mix now create a problem and should I have a shop flush & replace?

The fluid expands. Check while at 122°F. Only then will you know if you need to add more.

Will the mix create a problem, no, but I would do this again at the next oil change to increase the % of new and correct fluid.

 

[Bolini]

The fluid expands. Check while at 122°F. Only then will you know if you need to add more.

Will the mix create a problem, no, but I would do this again at the next oil change to increase the % of new and correct fluid.

Will do, but curious if the mix now creates a bigger problem. Will drain & fill a couple times help or is a complete flush necessary

 

[SparkYellow]

Will do, but curious if the mix now creates a bigger problem. Will drain & fill a couple times help or is a complete flush necessary

My first drain/fill (on a 2017 CX-3) was with the wrong fluid, red Idemitsu M5. Within a week or two I did a second drain/fill with the Aisin FZ and two more rounds after that. Not sure what harm comes from the mix of old OEM fluid and red, they mix fine, no jelly or sludge. I didn't do a flush. I replaced the filter later on because the pan was showing a leak.

 

[Bolini]

My first drain/fill (on a 2017 CX-3) was with the wrong fluid, red Idemitsu M5. Within a week or two I did a second drain/fill with the Aisin FZ and two more rounds after that. Not sure what harm comes from the mix of old OEM fluid and red, they mix fine, no jelly or sludge. I didn't do a flush. I replaced the filter later on because the pan was showing a leak.

Thanks, puts me at ease. Was kicking myself for not putting the red back in instead of adding the blue. Didn't feel too good driving around the block though. Did you need to do the transmission reset after the fluid change?

 

[SparkYellow]

Thanks, puts me at ease. Was kicking myself for not putting the red back in instead of adding the blue. Didn't feel too good driving around the block though. Did you need to do the transmission reset after the fluid change?

Yes, I reset the shifting pattern after filling with red fluid.

Do you mean it doesn't shift right after your drain/fill with Aisin FZ, or that you aren't comfortable yet?

 

[Bolini]

It wasn't driving right, but after my last post I went over everything in my head again and realized I didn't reconnect the MAF. Hopefully tomorrow I have a smooth running car.

 

[SparkYellow]

It wasn't driving right, but after my last post I went over everything in my head again and realized I didn't reconnect the MAF. Hopefully tomorrow I have a smooth running car.

My car wouldn't start if the MAF sensor was disconnected.