Poor tread life on OEM tires

[arencambre]

One topic in the Automotive Maintenance merit badge is tread wear indictor bars. And the Scouts discovered that my rear tires are shot!

That after only 9933 miles on a new 2022 GT2! I have Michelin Pilot Sport 4 tires with a 320 treadwear grade. I am not hooning my car, so this is surprising.

What tires deliver better for treadwear yet not suck?

It appears that Michelin denies treadwear warranty on factory-installed tires, and Kia seems to exclude it unless you buy some optional package. But given that the treadwear warranty was 20,000 miles, then divide that by two because the tires cannot be rotated (staggered wheels, which I was aware of and is fine!), not sure I'd have any recourse anyway.

My middle-ish wide channel is at the treadwear bars. There's a little life left on the other two channels.

 

[JSolo]

!@#$ 20K miles... Wow. I had ~18K on my g37. These were pilot super sport (older generation), but also staggered (225/50/18, 245/45/18). I did rotate side to side every so often.

Avoid driving in the rain and you'll be fine...

 

[ChaneRZ]

That’s why I got rid of oem and went with all season instead. I don’t drive at the track or need sticky tires anyway.

 

[Ozstung]

One topic in the Automotive Maintenance merit badge is tread wear indictor bars. And the Scouts discovered that my rear tires are shot!







That after only 9933 miles on a new 2022 GT2! I have Michelin Pilot Sport 4 tires with a 320 treadwear grade. I am not hooning my car, so this is surprising.







What tires deliver better for treadwear yet not suck?







It appears that Michelin denies treadwear warranty on factory-installed tires, and Kia seems to exclude it unless you buy some optional package. But given that the treadwear warranty was 20,000 miles, then divide that by two because the tires cannot be rotated (staggered wheels, which I was aware of and is fine!), not sure I'd have any recourse anyway.







My middle-ish wide channel is at the treadwear bars. There's a little life l

What tyre pressure are you running? Under or over inflated pressures can wear quicker.

eft on the other two channels.





 

[arencambre]

What tyre pressure are you running?

36 PSI, manufacturer spec.

 

[arencambre]

That’s why I got rid of oem and went with all season instead. I don’t drive at the track or need sticky tires anyway.

What did you go with? How do you like them?

 

[arencambre]

I am partial to Michelin tires given past experiences. They have always been superior.

Some choices for rears:

• Michelin Pilot Sport All Season 4: $260 (Discount Tire), cost factor: 1.16¢
• Michelin Pilot Sport 4S: $322 (Discount Tire), cost factor: 2.15¢
• (this is OEM) Michelin Pilot Sport 4: $292 (Cosco), cost factor: 2.92¢

Cost factor = cost / half of miles of treadwear warranty

Looks like OEM is the worst value, and the All Season variant is best value. But I am concerned at how well they handle.

 

[arencambre]

!@#$ 20K miles... Wow. I had ~18K on my g37. These were pilot super sport (older generation), but also staggered (225/50/18, 245/45/18). I did rotate side to side every so often.

Kiddo inherited my 2010 G37S. FUN CAR.

Checked records, and it has the Michelin Sport All Season 3 Plus tires. The car is fun to drive!

 

[Texasbest19]

I was just as surprised as you. 2022 GT2 and needed to replace my front 2 at ~9000 miles. Ended up replacing the fronts with the OEMs but figured that if the tread was going to run through that fast, did not make sense to keep doing it. Once I had to replace the rears at 12,000 miles I went with the firestone Indys. They are definitely a downgrade, still good and have no traction issues but I do feel the road a bit more. ~$250 a tire vs $350 so I am ok with the small downgrade.

 

[vipeboy2000]

I had the all season primacy tour a/s tires that came on the awd, and they were long lasting but not the grip i was looking for.. I didn't need summer tire grip but was used to uhpas tire levels of grip so when we had a puncture at 10k miles, we went ahead and replaced them all to the pilot sport all season 4 tires.. have got 19k miles on them and the rears are just about at the wear bars now, fronts still probably have about 8-10k on them left. Have the new continental extremecontact dws06 plus on our z4 and really like them.. so may try them next time on the stinger.

 

[Snicklefritz]

my experience: 1st of all I didn't notice that the ps4 oem summer michelins only had a rear warranty of 10,000 miles, I thought it was 20,000 for no reason, so when I got about 14,000 out of the rears I was annoyed until I realized that I had exceeded the warranty rating by thousands of miles. went with michelin ps4s since then and have obtained about the same mileage on another two sets of rears, which is half or close to it of the 30,000 tread warranty for not squared. I do corner hard from time to time but still think that something in the 20,000 to 30,000 miles range is more reasonable. it is odd that my nitto motivo uhp a/s tires have worn out front and rear at the same rate while the michelins wear out rears at close to two sets to one set of fronts, don't know how to explain that difference in brands and a/s compared to summer tires. Ima looking at a third set of rears really soon and have to decide, probably go ps4s one more time to the point that the fronts are shot and the rears by then are too, then go a/s and stop swapping summers for a/s in winter. I don't need that much grip seriously, for instance the nittos are darn close to the michelin summer tires and if I notice a difference then I've pushed that corner too hard anyway.

 

[arencambre]

I surfed a bit and reviewed Consumer Reports.

I am going with Michelin Pilot Sport All Season 4 tires. Compared to the Pilot Sport 4S, the All Seasons have:

• One notch down on handling performance
• 50% more treadwear-warranty miles
• 80% higher UTQG treadwear rating
• 19% less price
• Less noisy

In Tyre Reviews's comparo of both Pilots (on a Tesla 3), it appears any warm-weather performance differences he's finding would only show up on track day, not in city driving. Here's that guy's summary chart, which exaggerates differences by about 1/3 because the X-axis does not start at 0:

 

[JSolo]

18 Months here with the A/S 4's. No complaints so far. I have some fun on on/off ramps, but do treat the street as a street, not track. No issues in the rain. Can't comment on snow as I try to avoid driving in it as much as possible and have lucked out to date.

At ~7500 miles, wear appears decent. I do have a bit of michelin loyalty as they've been on the last 2 cars and 2 motorcycles.

 

[ChaneRZ]

What did you go with? How do you like them?

Went with Pilot Sport All Season. I really like them. Comfortable ride and quiet.

 

[arencambre]

Went with Pilot Sport All Season. I really like them. Comfortable ride and quiet.

Awesome. I just went with the Michelin Pilot Sport All Season 4 on the rear. Front still has a little tread life left.

The rears:

 

[Snicklefritz]

Awesome. I just went with the Michelin Pilot Sport All Season 4 on the rear. Front still has a little tread life left.

wondering how that would work in the snow with summer on the front a/s on the back.

 

[JSolo]

^^Lots of donuts?

I remember having summer only rubber on a 4th gen camaro. 1/4" of snow was all it took to get 'em spinning. Winter is almost over. Just avoid the snow.

 

[Snicklefritz]

I do avoid the snow on summer tires. if it isn't deep and is turning to slush because of a thaw I'll go out gingerly. my question was addressing the good grip in the back vs the marginal grip in front, or certainly less grip even on a dry road in the cold, it could tempt you to be less than 'ginger' in your driving, having good a/s on the back but summers on the front.

 

[arencambre]

I am not clear why you would run different tires on front and back. You need season-appropriate grip on all axles no matter if your car is RWD, FWD, or AWD.

 

[Snicklefritz]

I am not clear why you would run different tires on front and back. You need season-appropriate grip on all axles no matter if your car is RWD, FWD, or AWD.

that's what I believe. but you said, "Front still has a little tread life left." and that you put the michelin a/s in the back. I assumed that you were finishing up your oem summer tires in front after replacing the rear with a/s. thus my question about what you expected doing that.