So i'm getting around to checking tires on # 1791 . ( which I purchased late June )
All tires are Michelin Pilot Sports
Fronts are 255/40/ZR 17s
Rears are 335/35/ZR 17s
Date Codes for fronts are 0210....2nd week 2010...Rears are 0909 9th week 2009
They show very little wear...Should they be replaced because of age ?