Goodyear blowouts

[Jimfla]

I have a 2011 with Goodyear g114 tires had two blowouts 100 miles apart thread separation not side wall tires were little over 5 years old . I use tire monitor tires were never run low on air never been patched . How many years has everybody getting out of there tires I thought it was 7 years now Goodyear says 4 years .