don't ever use that old tires on any car you or your family drives, thats just playing lottery with your lives.
Braking distance, handling.. etc is compromized. even 8 yeard old NOS tires are crap, don't matter where they are storaged. rubber loses its properties get harder due time.
And if you have ever driven on ice/snow on old tires and new ones on same car you can see difirence, just 5 years old tires have twice long braking distance...
