I have a question about tires. Is there a way to know the number of miles for each mm of tread wear? I my tires are 3s and 4s and I plans to replace them as soon as the order arrives. I am curious into how to determine an estimate on how many more miles they will last. The Tires are Michelin Premier A/S with 60,000 mile treadwear and I have 47,000 miles of wear on them. Thanks.
Is there a way to know the number of miles for each mm of tread wear
No. Too many variables.
If they are warranted for 60K and you've already put 47K on then you're getting close to the end of their life. Mileage also depends on your cars condition, where you drive and how you drive. Have you keep them properly inflated and rotated them? It all adds up but as long as the wear indicators built into the tire are not showing, and assuming you don't have suspension issues then you should have a bit of time left.
Tires are kept properly inflated and rotated every 5000 to 6000 miles. I may have an alignment issue, but I'm not sure.