That’s my understanding on that run flat tire sizes...

Okay, now I have one more. I bought my tires & replacement TPMS sensors for the rear from Discount Tires in the Knoxville area and that caused two more questions:

1) We’ve driven and enjoyed the tires for a couple of weeks; however, the TPMS sensor light is still on. I know that it’s normally supposed to reset when it detects the new sensors. I stopped by the tire place and they told me they I had to go to the dealer to get the sensors to initialize. Is that true?

2) If it is true, should I pay for them to do it or wait until I get new tires (and sensors) for the front? I had a mechanic friend tell me that they should all be replaced at once. Note that the TPMS was working fine before I had the rear tires replaced.

Thanks!