First trip out with my new to me fiver, blew tire going, GS ERS was great...
Got new spare once I reached destination. Tire place said 3 years for trailer tires, no matter how good they look.
Returning home, blew another. Put new spare on...sound familiar? Again GS to the rescue. Got home and put 4 new tires on, tire company upgraded to load range D, from E, for me. Also said 3 years. Mine were right at 3 years old.
Not overloaded, aired to correct pressure. Traveling 55 to 60 m.p.h.
First blown tires since 1992, rving. Two in one trip.