If only there was a fast, inexpensive, easy way Tesla could disseminate information to all of us...
Replace all stickers on the car with e-paper displays and update them via OTA firmware upgrades.
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If only there was a fast, inexpensive, easy way Tesla could disseminate information to all of us...
If only there was a fast, inexpensive, easy way Tesla could disseminate information to all of us...
Replace all stickers on the car with e-paper displays and update them via OTA firmware upgrades.
I just read through the thread you linked to again. I wouldn't say "we've been over this before" based on anything in that thread.
In that thread you said that you thought that Tesla had switched from recommending 50 psi to recommending 45 psi, based on the fact that your early-build 85D had a sticker that recommended 50 psi, and Nevek had an April build with a sticker that recommended 45 psi. But that was the only evidence pointing to a switch back. There were no statements from Tesla or anything. And at the same time that Nevek's car was being built, the "official" chart was being posted, with the 50 psi numbers, here: P85D 19 tire pressure recommendation is now 50psi - Page 5
I think it is very likely that Tesla has now changed the recommendation back, but I don't think they made the change in time for Nevek's April build sticker. If they did, why would the service centers only be mentioning it now, and only be inflating tires to 45 psi as of the last few days? When my car was serviced in very late April, the SC inflated to 48 psi. I'm sure others, until very recently, were seeing similar behavior.
I think if Tesla has switched the recommendation back to 45 from 50, that change happened in the last couple of weeks, at the earliest, not back in late March or early April.
Thank you for bringing this to our attention. After checking with our engineers at the factory we have been told both PSI ratings are acceptable. Our service manual states 45psi and some vehicle placards say 50psi. We are happy to inflate the tires to 50psi if you prefer. Moving forward, we will likely adjust your psi to 50 to follow the door placard.
The car will alert you if your psi is too low, I believe 38psi is when the "Tire pressure too Low" alert will appear.
The reason there is conflicting information is that every tire pressure recommendation is based on a set of assumptions. They aren't something that's set in stone, nor are they a maximum (as some seem to believe). It's really up to the driver to examine the tires and adjust the pressure accordingly. The vehicle placard number gives a reasonable starting point, and generally you shouldn't ever go below this value (although there are rare exceptions).The conflicting information is a bit frustrating.
There was most definitely a statement from Tesla in that thread. I copied and pasted from the email from them here:
Tire Pressure on 19 Wheels - Page 2
So the only thing you really have going for this theory that they've changed it back is that comasign was told 50 psi, even though a month later he posts and says they changed their mind and a copy from a possibly outdated service manual.
The reason there is conflicting information is that every tire pressure recommendation is based on a set of assumptions. They aren't something that's set in stone, nor are they a maximum (as some seem to believe). It's really up to the driver to examine the tires and adjust the pressure accordingly. The vehicle placard number gives a reasonable starting point, and generally you shouldn't ever go below this value (although there are rare exceptions).
I think you may have misunderstood me. I don't think Tesla changed the recommendation back to 50psi. I'm pretty sure you and I agree that at one point, originally, the recommendation was 45 psi, at some point Tesla changed it to 50psi, and then later changed it back to 45psi, where it is now. Where we disagree is you believe the change back to 45psi happened quite a while ago, and I'm thinking that it happened more recently than that. You may well be right.