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Old 01-30-2016, 09:27 AM   #1
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Excessive rear tire wear.....?

Well my daily driver got another service, and another clean bill of health, however the shop said: "Only thing is, you'll want to replace those rear tires soon".
Really? I put on a new set last spring! However they probably have 20,000 or so miles on them. I know from previous threads that these cars are hard on rear tires. So is this typical of the amount of life I can expect? No biggie, but just curious.
I should add that I had the suspension and alignment set up to favor tire wear over handling.
And the shop also pointed out I was running them a bit under-inflated. I have been running them 27 psi F, 32 psi R. I have corrected it to the factory recommended 29 F, 36 R.


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Old 01-30-2016, 10:10 AM   #2
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I use 3 sets of rear tires for every front set -- i.e., the fronts last 3 times as long.

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Old 01-30-2016, 10:20 AM   #3
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If you got 20k on rears, you're lucky.
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Old 01-30-2016, 10:44 AM   #4
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Wait a minute....You've got 20,000 miles on those, they look that good and you're calling that excessive? Ha!
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Old 01-30-2016, 10:59 AM   #5
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20k is a long time for rear tires

also the factory tire pressures are calculated to add understeer

if the tire is wearing evenly, it is not over or under inflated
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Old 01-30-2016, 11:13 AM   #6
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Thanks for the responses!
I'm thinking too "conventionally" again.
I'm used to my regular cars over the years where I can average 35,000-45,000 miles per set of tires! But none of them have been performance oriented.
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Old 01-30-2016, 12:38 PM   #7
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It still looks as thought you may have some alignment issue maybe a small amount of rear tow passenger side
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Old 01-30-2016, 12:44 PM   #8
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I had a set of Michelin 265/40/18 Pilot Sport 2 rear tires that lasted 8.000 Km (4.970 miles) - than they had 2-3 mm profile. Street use only.

So i think everything is OK with your tires.

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Old 01-30-2016, 02:40 PM   #9
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It still looks as thought you may have some alignment issue maybe a small amount of rear tow passenger side
^^ I agree ^^
In the first picture, the inner tread has worn much more than the outer....
Just compare it to the LHS tyre.
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Old 01-30-2016, 07:31 PM   #10
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Wait a minute....You've got 20,000 miles on those, they look that good and you're calling that excessive? Ha!
Echo that PW
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Old 01-30-2016, 07:57 PM   #11
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I'll have the alignment checked again.
I've had the lower control arm replaced on the driver's side, but the passenger's side is still original and beginning to make a little noise. That might be the difference that's causing the harder wear on that tire.
Thank you guys again for your input!
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Old 01-30-2016, 08:04 PM   #12
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20K? I never got more than 8K miles from a set of rears on the street. You're good to go!
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Old 01-30-2016, 08:13 PM   #13
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20k - that is pretty good.
My Potenzas are down to the wear bars at 13,000 miles! And I have enjoyed every on of them! Lots of canyon carving and blasts up Highway 1
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Old 01-30-2016, 08:23 PM   #14
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You haven't even reached the wear bars yet.

I don't think my Hankook V12's had that deep a tread when brand new.

I'd keep driving those and check every 2k miles to see how they are holding up.

I guess if you get rain you may not want drive them past the wear bars.
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Old 01-30-2016, 08:25 PM   #15
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Echo that PW
Quote:
Originally Posted by njbray View Post
20k - that is pretty good.
My Potenzas are down to the wear bars at 13,000 miles! And I have enjoyed every on of them! Lots of canyon carving and blasts up Highway 1
My latest set are Bridgestone Potenzas...they are at 12k miles and need to be replaced.
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Old 01-31-2016, 04:36 AM   #16
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Wow, I guess I need to change the title to: Excessively Low Tire Wear!
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Old 01-31-2016, 11:01 AM   #17
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I go through two rears for every front, probably about 15-20k miles on each set of rears. I would advocate buying and storing the extra rears. Twice now I have had to replace all four because for some reason the 255 rear size is always getting discontinued. Since it is your DD, you might be able to get a few extra thousand miles if you go with a less performance oriented tire like High Performance or Performance instead of Ultra High or Max Performance.
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Old 01-31-2016, 01:48 PM   #18
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^^ I agree ^^
In the first picture, the inner tread has worn much more than the outer....
Just compare it to the LHS tyre.
I understood that is normal on a Box, as the rear tires have a bit of an angle to them. They don't ride straight up and down, so logic says they should wear on the inside much faster than the outside?
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Old 01-31-2016, 02:03 PM   #19
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Mine wear the same way, the inner tread goes first. It can be misleading because the edges of the tire will look fine.
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Old 01-31-2016, 08:04 PM   #20
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not too bad but you can get a little better wear with less toe in the rears.
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