Tesla has recently updated the torque specification for wheel mounting. The change appears to have taken place in March or April of 2013. If your car was manufactured before March 1, 2013 and you have not been in for service yet, you should check the torque on your lug nuts. I recently discovered that mine were surprisingly loose. The old spec was 140N.m. (103 lb/ft) The NEW spec is 175N.m. (129 lb/ft) Here's the whole story about what happened to me... Has your Model S suspension lost its new-car crispness?