18" OEM Bridgestone RFT's - the wear pattern is the same on all 4, with inside and outside threads ar 4/32" and the middle at 6/32". I asked the tire shop if they were underinflated, which would account for this but they said that it wouldn't ( I keep them at 33psi), no further explanation. What is your experience? I think I will soon need to replace them.

 

I recently had my 10,000 service done and I observed my 18” OEM RFTs were wearing all the same as well. I’ve attached here my inspection report and you could see they are all in the 7/32” mark. I’d want to see where the tread mark will be at 20,000 miles but based on my observation from many fellow NXers experience, the RFTs need to be replaced at around 25,000 miles. For the tire pressure, I don’t know why but the dealer always set the pressure to be 35 psi all around. But when I adjust during filling up the gas, I keep them at 33 psi. What is the odometer on your NX since you have the tread depth around 4/32” on your tires ?

 

I am at 21,000 miles only, 4/32" is at the sides it's still 6/32" in the middle. Is yours wearing evenly? Check the depth at the sides, not just in the middle. I do notice the dealership inflates them to 35" which makes for a slightly harder ride.

 

I was under the impression that the service technician would measure it everywhere and the least tread depth is represented in the inspection. May be I should stop by a tire shop to see if the wear is uneven. Anyways, the burning question is are you going to replace the run flats with the traditional when it is time?

 

You would be able to see it if you are close to the wear bars on the sides as I am, and still have rubber in the middle. I am on the fence about going with a regular tire for the new set. I can't remember ever having to change a flat tire on the side of the road since the 1970's. Since my wife drives the vehicle, I have to consider that use case. I would probably carry a can of fix-a-flat and have a spare at home, along with a jack. That's if I go non-RFT - the road noise reduction might be worth it, but I have not heard a resounding recommendation from the community.

 

I'm just wondering about something. If you set the psi when you get gas, it means you've been driving and have heated tires. Setting them to 33 will be below that when they cool. The 33 psi on the door jam is for when the tires are cool. Other tire experts here (which I'm not) may have other thoughts on this. Just thought I'd raise the possible issue.

 

For funsies I went around all my RFT tires with a depth gauge, they are all wearing pretty evenly so far. All tires, all grooves are 7/32nds (+/- 1/64th) so far after 19000km (~ 11800 m). I usually run my tires at 35psi cold.

 

I run 35 psi cold too.

 

I always check/adjust my tire pressure cold. On the rare occasion I set them at a pump, I add 2psi. I will try to run the last few thousand miles at 35 psi (cold) to see if it changes anything.