Replace 6 year old tires?
During 2 different services each tech indicated that her tires were more than 6 years old and should be replaced because they are a safety hazard.
I've been driving and maintaining our autos for many years and this is the first time I've heard such a comment.
The tires in question show some wear but the tread is not even worn down to near the wear bars.

Is this a ruse? Are the wear bars meaningless now, or has tire technology worsened so that the tires degrade more quickly.



