Hey I just want to acknowledge Kruzer1 Post on August in 2022. The 8F57 was a breeze in the ST (2019).
Go under your car take the fabric cover off the driver's side you don't even need to remove it completely. 8mm I believe. Then there's the 14mm drain plug. Wait, take off the front most intake tube you'll see the breather and clamp attached to transmission. There's actually no videos or free documentation online so I was skeptical. Drained fluid, then poured a little ULV in the 1 inch hole. You need channel locks to get it off. Waited a minute and it trickled out. Great.
Measured what came out with old gallon containers of coolant. About 5.5qt bought the 6 pack so it was perfect. Wished I did have 7qt though. Locked back up. Already have a monitor so it did take 20 min to get the transmission around 200. The slipping in 5th or 28-38mph is gone. I did reset the learning too though so it's debatable which helped more. Old fluid was dirty so it surely helped.
Rare
