5 years old, then yes replace them. They are at an increased risk of failure.
These tires on my wife's CRV. They are the expensive Michelin that I have for close to 5 years. They still have a lot meat on them. They are the 70K miles tires. Now on the side wall they developed small spider cracks. On the tread, there are cracks between the blocks. Am I at risk of blow out or failure? Given Discount Tire has awesome deal going on, should I just bit the bullet and stop being a TCB?
Gabriel
5 years old, then yes replace them. They are at an increased risk of failure.
You could just wait and someone could collect the life insurance. :)
1990 White NA - SOLD
1994 Black NA - SOLD
2006 Red NC - GT with limited slip, HIDs, all OEM.
Cracks allow the rubber to breath. You know, like fine wine. I'd keep them.
Bobby
RED RULES!
90 Miata, 04 Rubicon, 05 Boxster
On the track, I am fearless.
If you were as slow as me, you wouldn't be afraid either.
1994 M Edition
CSP 67
DT will often give some pro-rata credit on old but good tires if you are buying the same brand.
Polished Turd Racing
Mick wrote: "I think Jerrett is the best autocrosser I have ever seen naked."
This happened to me a few years ago in the truck... get those tires replaced.
'94 Black & Black & Tan
'99 head swap, JR header, TDR intake & header blanket, MegaSquirt, RB hollow bar, Tein Flex, 15x8 6ULs, HD M2 Sport, FM cat, Borla cat-back, black '95M interior, MOMO Zebrano, IL Motorsport console...
Dyno Days
8/16/08 (bone stock): 103.1 hp/99.0 lb-ft - Dynojet
8/23/08 (Borla cat-back): 108.2 hp/104.1 lb-ft - Dynojet
8/13/11 (more stuff...): 126 hp/116 lb-ft - Mustang dyno
Roger Moore: the Danny White of James Bonds
What everyone else said, don't mess around with your safety.