I can't see getting another 12k out of mine (I just replaced at 52k), let alone another 30k. Do you only drive on cotton?
When I got over 40K miles on these tires, I figured I'd have to start looking for a new set. I didn't even measure as I was convinced OEM tires don't last this long. I was ready with pricing for the service adviser to come in and tell me I'd have to replace them. That way he could price match or I would go elsewhere for replacement. It didn't happen and the tread depth reported was good.
Then 45K, then 50K. I figured the previous owner must of replaced the OEM tires, right? No way Goodyears last this long especially OEM on a heavy vehicle like this and have towed with it too.
During the research on the tires, I found the reviews on these from multiple tire sites said they last for many miles.
I do rotate them every oil change and make sure they are properly inflated but still I am impressed. I don't consider them the best traction tires in snowy slippery conditions but I use the 4wd and drive conservatively in poor conditions and they are good enough. I also don't off road it beyond dirt roads. So I can't speak to the traction there either.
I started this thread to see if this is unusual or normal. It appears normal.