Impressive milage. I might have changed them out a little sooner but I understand your interstate usage, still need to account for rain …..and lots of it where you live.
Looks like you changed them out yourself. Where do you dispose of them? Only asking because it cost me $60 to get rid of 4. I use to pay $10 ea at BJs Tire but they only seem to accept old car tires now.
There’s a Regional Govt org near by called Mosquito Control that takes them for free once a year, I gave up waiting.
4515.
Your post had me checking current pricing forr the non GT4s which seems to be circa $$400 for 180/120 combo. Last Nov I paid $303 for the same set. The Gts look around $450 with non Gt 6s around $515
190s are of course higher $.