Nolathane bushes, life span?

[Kevxr8Leexr6]

10 year ago my uncle fitted his EA SPAC with nolathane red bushes all round. has only seen the track about a dozen times and has sat idle for 4 years. when I started checking all the driveline suspension (nut an bolt check) worn parts etc, found the swaybar bushes were crumbling and near gone. ive had 23 years in the xr8 with the standard black bushes so have the nolathane bushes have a useby date .