Joined: Jan 2015
Location: North Carolina
Normally the tires I buy don't last 6 years as far as tread life goes. I do drive a lot and not granny them though so I am sure that has something to do with it.
To be honest though when I buy a used car I typically don't want tires older than 4-6 years with 6 years being the max. If older than 6 years I replace no matter what they look like. If less than 6 years I take a good look at tread, sidewalls, and make sure no signs of cracks, dry rot, bulges, flat spots and etc. If any of those are present tires are replaced immediately. If none present I will use them for a few months to a year tops and then get new tires at next inspection.
(11.)2012 GT500 silver with red stripe, SVT performance package, and Recaro seats.
2018 Honda Civic Type R
Past Mustangs in order and color of text.
(1.)2000, (2.)2004, (3.)2006GT/Auto traded for (4.)2006GT/Manual, (5.)1996, (6.)2011GT, (7.)2003GT, (8.)2006GT, (9)2013 Boss 302, and (10.) 2002GT
(I have owned a few non Mustang cars over the years as well, but always try to have a Mustang with it or come quickly back to a Mustang!)