Uneven Tire Wear

[jasonsw]

Hello all, TPMS (Tire Pressure Monitoring System) went off on Driver side REAR tire for the second time in a month. First time, I put some air in thinking it was a small puncture / leak. Second time around, I took it to the shop. They found no leak, however the inner surface was worn beyond(?) recognition...

Both the rear tires were worn inner surface while driver side was more noticeable.

Tires were rotated about 9,000 miles ago. My car was pulling to the LEFT, so I rotated front wheels (not rear) 2 weeks ago.

Question 1: Could this uneven wear be result of faulty alignment in the front? or faulty alignment in the rear? I noticed that rear tires tend to sit in-ward like this when looked from the back /--\ whereas |--| should be normal for most cars.

Question 2: I think I saw similar alignment in the rear from other luxury cars like that of MBz. Is this done purposely to improve handling or roll-over?

Question 3: Isn't 35PSI the proper pressure for the tires? I noticed it was in 25 PSI or less once returning from the dealer. Could this be done to 'improve' on ride? or overlooked by the dearler?

Thank you in advance.

 

[scottdk]

Hello all, TPMS (Tire Pressure Monitoring System) went off on Driver side REAR tire for the second time in a month. First time, I put some air in thinking it was a small puncture / leak. Second time around, I took it to the shop. They found no leak, however the inner surface was worn beyond(?) recognition...

Both the rear tires were worn inner surface while driver side was more noticeable.

Tires were rotated about 9,000 miles ago. My car was pulling to the LEFT, so I rotated front wheels (not rear) 2 weeks ago.

Question 1: Could this uneven wear be result of faulty alignment in the front? or faulty alignment in the rear? I noticed that rear tires tend to sit in-ward like this when looked from the back /--\ whereas |--| should be normal for most cars.

Question 2: I think I saw similar alignment in the rear from other luxury cars like that of MBz. Is this done purposely to improve handling or roll-over?

Question 3: Isn't 35PSI the proper pressure for the tires? I noticed it was in 25 PSI or less once returning from the dealer. Could this be done to 'improve' on ride? or overlooked by the dearler?

Thank you in advance.

The OEM tires on the car or terrible, but yes the rear camber on this car is normal and does increase performance. Here is a quote from Tirerack about a Summer/high performance rubber:

The Sumitomo HTR Z III features a silica-enhanced tread compound molded into a sophisticated, 5-rib, asymmetric tread design. Large outboard shoulder and intermediate tread blocks along with continuous center and inboard intermediate ribs provide responsive handling, high-speed stability and dry road traction. The inside shoulder is linked by another continuous circumferential rib that enhances wear quality to help reduce noise throughout the life of the tire, especially on vehicles with independent suspensions and alignment settings that specify negative camber.

Yes, this happens to be the tire I run on my car, but more importantly it's tire performance is linked to the rear tire camber on the the Genesis. It wouldn't hurt to take your car in to check alignment, but ALSO, I belive 33 PSI is recommended for the vehicle, not 35 psi, although probably not too much difference.

 

[scottdk]

Hello all, TPMS (Tire Pressure Monitoring System) went off on Driver side REAR tire for the second time in a month. First time, I put some air in thinking it was a small puncture / leak. Second time around, I took it to the shop. They found no leak, however the inner surface was worn beyond(?) recognition...

Both the rear tires were worn inner surface while driver side was more noticeable.

Tires were rotated about 9,000 miles ago. My car was pulling to the LEFT, so I rotated front wheels (not rear) 2 weeks ago.

Question 1: Could this uneven wear be result of faulty alignment in the front? or faulty alignment in the rear? I noticed that rear tires tend to sit in-ward like this when looked from the back /--\ whereas |--| should be normal for most cars.

Question 2: I think I saw similar alignment in the rear from other luxury cars like that of MBz. Is this done purposely to improve handling or roll-over?

Question 3: Isn't 35PSI the proper pressure for the tires? I noticed it was in 25 PSI or less once returning from the dealer. Could this be done to 'improve' on ride? or overlooked by the dearler?

Thank you in advance.

The OEM tires on the car or terrible, but yes the rear camber on this car is normal and does increase performance. Here is a quote from Tirerack about a Summer/high performance rubber:

"The Sumitomo HTR Z III features a silica-enhanced tread compound molded into a sophisticated, 5-rib, asymmetric tread design. Large outboard shoulder and intermediate tread blocks along with continuous center and inboard intermediate ribs provide responsive handling, high-speed stability and dry road traction. The inside shoulder is linked by another continuous circumferential rib that enhances wear quality to help reduce noise throughout the life of the tire, especially on vehicles with independent suspensions and alignment settings that specify negative camber."

Yes, this happens to be the tire I run on my car, but more importantly it's tire performance is linked to the rear camber on the the Genesis. It wouldn't hurt to take your car in to check alignment, but ALSO, I belive 33 PSI is recommended for the vehicle, not 35 psi, although probably not too much difference.

 

[ctrcbob]

Per a Four Wheel Alignment:

I changed out my tires a few thousand miles ago. The tire dealer, (always wanting to make more money), did a "Free Alignment Check" with the tire change. Tire dealer said (and showed me the print-out) that said one of my rear wheels was waaaaay out of alignment. Now I knew that was not so, as I had my wheels aligned at my Hyundai Dealer about 1000 miles prior to the tire change. The tires removed from my Genesis did not show wear from that rear that was "out of alignment". Told the Tire Dealer that I would return another day for the alignment. (They wanted me to do it that day). I then drove to my Hyundai Dealer, spoke with the Genesis Technician, telling him what the Tire Dealer told me and showed him the print-out. The Genesis Technician put the car on their machine, and checked it out. The alighment was STILL GOOD, and no adjustments were needed. Best part was my Dealer Service Department did not charge me for the alignment check. This is why I love my Dealer Service Department and their Genesis Technician - I do bring him and the Servicer Writers "eats" every so often, when I am in their area, even though I don't need or want service at that time.

(Just so I'm understood correctly, I'm not crazy about their Sales Department [although better than my closest Hyundai Dealer], but I love their Service Department).