Just hit 100K in my 2020 STX. I have a SCAB, 5.0, 3.73s. No issues that have taken it down. I had one TSB for an update that threw a CEL and took it into the dealer for 10min for they updated it. Been changing oil at 5k miles for the first 60K then switched to 7500 and sent in a oil analysis at blackstone, came back good did 7500 until 90k. Pushed to 10k mile intervals and am waiting for my first report on the analysis to come back as I just changed the oil.

At 5k intervals I was running the Motorcraft 5W-20 Blend. At 60K switched to Amsoil 5W-20 Signature Series and been using that ever since.

Transmission is still all over the place, makes all sorts of noises which I have addressed on here and with the dealer and basically nothing is found to be wrong. I'm not convinced of long-term reliability from it yet. Time will tell.

Anyway love the truck thus far and looking forward to the next 100k. I bought the extended warranty for 6 years 150K which should give me a little over a year from now before that is gone. Any questions feel free to ask.