I've read on the internets that Tesla is now recommending a tire pressure of 50 psi, as opposed to 45. The 6.2 online manual doesn't give a specific value; it says to look at the sticker on the driver's door pillar. Mine says 45 psi. (I have a P85 with 19" wheels and Michelin Primacy tires.) However, the last time I took my car to the service center, they performed a "check and adjust tire pressure" procedure. The invoice did not state what psi the tire pressure was adjusted to, but I checked it when I got home (using a reasonably accurate gauge) and all 4 tires were at 48 psi. At the time, I thought they must have made a mistake and so I reduced that to just over 45 psi. Now, I'm not so sure I did the right thing. I wonder if the 50 psi value is specifically due to the extra weight of the dual motor configuration, or is this something that is now recommended for all Model S cars? Maybe 48 psi is actually the best setting for non-D cars?