We have yet another thread about rear tire wear on the Model S. This time it purports to warn people about the P+ package in a Public Service fashion.
It is indeed a public service on forums like this to share information. It is a bit of a disservice to speak of lots of other threads on the subject then provide but one view of the issue. It can lead some who do not take the time to digest the other threads to come to the conclusion that the OP has accurately summed up the issue.
Some people have high wear on MS rear tires.
Other people do not.
There is a thread dedicated simply to collecting MS owner's experience on tire wear so that the reader can form their own opinion.
There is a lot of camber in the rear suspension of MS.
Air suspension cars carry more rear camber because they use the same suspension geometry as coil spring cars but they ride lower and thus are further up the "camber gain" curve.
Tesla came out with some smaller diameter bolts for the upper rear suspension link and use the bolt slop to move cars that are outside Tesla's specification into Tesla's specification.
Tesla's specification allows for around -2 degrees of negative camber in the rear which some, including myself, feel is a lot. I say this as the coil spring cars have around -1.2 and seem to do just fine.
Tesla engineers chose to not have two different upper links for the coil and air suspension cars and chose to not provide for rear camber adjustment.
Some people are getting good range and some are not. This, by definition, says that something is going on but simply falls short of laying all the blame at Tesla's feet.
Lastly, most everyone at Tesla is well intentioned but very often you will get incorrect information from the service centers. In a few cases, I've have gotten the feeling that the troops fill in the gaps when corporate has not provided sufficiently clear information on a subject.
So, is there good reason to read "Public Service" threads with simplified summary statements on problems, sure. Should you take the next step if you are concerned and read the more detailed information, absolutely.
Lastly, the real failure here is that of Tesla Engineering to do a now famous Tesla Blog Post on this subject. The Pilots (Tesla uses the expensive ones) are over $500 each. Tesla Engineering should have significantly more, and more accurate, information than that contained in forum based experience surveys. It is also their product thus I feel the real failure here is Tesla's relative silence on the issue.
Now watch Tesla Engineering do a blog post where they say 4000 miles on P+ rear tires is acceptable. If they do, I'll come back here and eat my words.
It is indeed a public service on forums like this to share information. It is a bit of a disservice to speak of lots of other threads on the subject then provide but one view of the issue. It can lead some who do not take the time to digest the other threads to come to the conclusion that the OP has accurately summed up the issue.
Some people have high wear on MS rear tires.
Other people do not.
There is a thread dedicated simply to collecting MS owner's experience on tire wear so that the reader can form their own opinion.
There is a lot of camber in the rear suspension of MS.
Air suspension cars carry more rear camber because they use the same suspension geometry as coil spring cars but they ride lower and thus are further up the "camber gain" curve.
Tesla came out with some smaller diameter bolts for the upper rear suspension link and use the bolt slop to move cars that are outside Tesla's specification into Tesla's specification.
Tesla's specification allows for around -2 degrees of negative camber in the rear which some, including myself, feel is a lot. I say this as the coil spring cars have around -1.2 and seem to do just fine.
Tesla engineers chose to not have two different upper links for the coil and air suspension cars and chose to not provide for rear camber adjustment.
Some people are getting good range and some are not. This, by definition, says that something is going on but simply falls short of laying all the blame at Tesla's feet.
Lastly, most everyone at Tesla is well intentioned but very often you will get incorrect information from the service centers. In a few cases, I've have gotten the feeling that the troops fill in the gaps when corporate has not provided sufficiently clear information on a subject.
So, is there good reason to read "Public Service" threads with simplified summary statements on problems, sure. Should you take the next step if you are concerned and read the more detailed information, absolutely.
Lastly, the real failure here is that of Tesla Engineering to do a now famous Tesla Blog Post on this subject. The Pilots (Tesla uses the expensive ones) are over $500 each. Tesla Engineering should have significantly more, and more accurate, information than that contained in forum based experience surveys. It is also their product thus I feel the real failure here is Tesla's relative silence on the issue.
Now watch Tesla Engineering do a blog post where they say 4000 miles on P+ rear tires is acceptable. If they do, I'll come back here and eat my words.
