I changed my transmission fluid. Thanks to all of the many threads on this topic. I ended up going with Motul 300.
After raising the front on jack-stands, started the process. That drain plug bolt was on tiiieeeegght. I had to use a breaker bar (after really setting the torx head in there to prevent stripping). After a good bit of effort and a few choice words, the damn thing came loose. I had it set so well that the bit stayed in when I removed my bar. Oh well, no worries. Just made a good handle for removing the plug.
In this picture, that is a 1/2 to 3/8 adapter so I could use my breaker bar and a T40 torx head. And I wedged a piece of cardboard across from the hole to deflect the deluge that was forthcoming.
It seems that the actual amount drained is a hot topic lately. I have a late 2016 build with the original fill and it came out to right at 2 quarts (1.9 liters).
Once it was drained, I put the drain plug back in and torqued to 30 lbs. I swear I read that spec somewhere, but couldn't find it when I went back to searching. But felt good-and-tight so hopefully all good there.
Next was filling up. I've been swapping intakes a bit lately so removing my airbox is only a two minute job. And thanks to the bottle of Motul with the funnel tips, I just filled up from above by maneuvering the bottle in a way that it could be above the fill hole while ensuring the tip was inserted all the way in (yes, sounds dirty
but was actually quite clean!
) I have a bottle pump, but feel like this was easier and less effort.
Here is the fill hole with my bit inserted to make it easy to see in the pic. This is looking straight down in the hole created by removing the airbox if standing on the driver side of the car.
Pic of the bottle being drained into the fill hole. This takes a little while, but good time to clean up around the garage.
To get close to the 1.9L taken out, I just didn't completely drain each of the 1L bottles of Motul. They each have some trace amounts left, so I think I'm right at 1.9L. Later this week I'll probably take out the airbox, remove the fill plug, and use the wire method of seeing how far below the fill plug I am.
Initial impressions are - smooooooth. Much less notchiness. Maybe a tad more effort, but with it being so smooth, it feels wonderful to shift. Gear changes are quiet and buttery. Loving it so far. Hoping it doesn't turn into molasses in the winter.
The FiST is the first car I've ever done my own oil and trans fluid changes on. Couldn't have done it without those who posted before!