Mine will show a little above the hand calculated mpg but not by much. During my last tank, the LC said 21.9 while my hand calculation was 21.0 mpg (a little more city than highway miles).
Here in western PA, most seem to be selling at MSRP. Some of the FEs and 1958s are being listed a little under MSRP. One has an LC grade with PP at a few hundred under MSRP. And if anyone is eligible for team member pricing through VSPP, I finally found a few dealerships that will honor that...
I finally saw another one since I got mine a few weeks ago. I wasn't sure if they would be excited to see me but the driver got a huge grin and she started vigorously waving to me. It put a smile on my face.
I will be following Toyota recommendations. I have a family member who is an automotive quality engineer. They have tons of data, and none show any benefit to early oil changes. He says early oil changes are the essential oils for car people.