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Weird tire wear #5269337 11/16/19 04:50 PM
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ledslinger Offline OP
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A long time ago, my daughter bought a used 1999 Accord with Bridgestone tires on it. LF shows wear on the inside, so I rotate and the inside wear on that tire continues. At least one of those tires wore down to the belts before I replaced them. Didn't care much about using those tires up, planned to align when I put a new set on. Put a set of Michelin on it and went to the alignment shop. In spec, only charged me $30 since no adjustment was required.

Told the alignment technician about the last set wearing on the inside of the LF, he reiterated it was in spec. Left confused and fearing the new set would wear in the same place. Never did, that set of Michelin's went 80K and always wore evenly. Don't have a clue why the Bridgestone's would wear on the inside of the LF, even with rotation, when the alignment wasn't off. Any ideas?

Re: Weird tire wear [Re: ledslinger] #5269344 11/16/19 05:06 PM
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JohnnyJohnson Offline
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My guess is you need an alignment done by a different shop.


2004 Corolla 137366
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 76862
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Weird tire wear [Re: JohnnyJohnson] #5269350 11/16/19 05:23 PM
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hemitom Offline
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Originally Posted by JohnnyJohnson
My guess is you need an alignment done by a different shop.

he went 80k on his next set of tires with no issues so nothing wrong with that shop what so ever.


2009 Saturn Vue.
2015 Mustang GT Convertible.
Re: Weird tire wear [Re: ledslinger] #5269352 11/16/19 05:25 PM
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Warstud Offline
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Defective Tire or Unbalanced

Re: Weird tire wear [Re: ledslinger] #5269386 11/16/19 06:39 PM
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JLTD Offline
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Lots of left hand off ramps?


I use the overseas manual to choose my viscosity.


Hers: 2008 Jeep Liberty 154k, SS 5w30/Amsoil
Looking at options.

His: 2015 4Runner 60k, SS 5w20/Amsoil

Re: Weird tire wear [Re: ledslinger] #5269449 11/16/19 07:54 PM
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supton Offline
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Maybe the seller of the car noticed bad wear and got it aligned. Then came up with a reason to sell the car, but the damage to the tire was already done. Or maybe he bought a good set of tires, then decided to sell the car, and did a quick swap to put some junk tires on (so as to keep the good ones).

That's my guess.


2011 Toyota Camry, base, 2.5L/6MT, 196k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 155k, ours
1999 Toyota Camry LE, 2.2L/4AT, 217k, his
Re: Weird tire wear [Re: ledslinger] #5269553 11/16/19 11:01 PM
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Snagglefoot Online Content
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Check the height of your rear bumper at both corners. A sagging strut could cause a weird reaction at the front.


If you want the job done right......do it yourself.
Re: Weird tire wear [Re: ledslinger] #5269610 11/17/19 03:43 AM
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FT92 Offline
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had the same happen with my wifes ford focus....left front tire wore almost smooth across except for the two inside ribs...had alignment checked, was inline 100% took to another shop just to be sure about alignment , all was good...all I could think was a defective tire...new tires still going strong wearing great...both alignment shops told me the same thing, could very well be a defective tire

Re: Weird tire wear [Re: supton] #5269644 11/17/19 06:31 AM
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CapriRacer Offline
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Originally Posted by supton
Maybe the seller of the car noticed bad wear and got it aligned. Then came up with a reason to sell the car, but the damage to the tire was already done. Or maybe he bought a good set of tires, then decided to sell the car, and did a quick swap to put some junk tires on (so as to keep the good ones).

That's my guess.


Ding, ding, ding, ding, ding!!

We have a winner!


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Weird tire wear [Re: ledslinger] #5269689 11/17/19 07:59 AM
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ledslinger Offline OP
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Sorry I wasn't clear. Other tires rotated to the LF position wore on the inside.

Re: Weird tire wear [Re: CapriRacer] #5269690 11/17/19 08:01 AM
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ledslinger Offline OP
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Originally Posted by CapriRacer
Originally Posted by supton
Maybe the seller of the car noticed bad wear and got it aligned. Then came up with a reason to sell the car, but the damage to the tire was already done. Or maybe he bought a good set of tires, then decided to sell the car, and did a quick swap to put some junk tires on (so as to keep the good ones).

That's my guess.


Ding, ding, ding, ding, ding!!

We have a winner!


There was no tire wear evident when the car was purchased. All tires had good tread at purchase. Uneven tire wear appeared after putting some miles on it.

Re: Weird tire wear [Re: ledslinger] #5269698 11/17/19 08:16 AM
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ledslinger Offline OP
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To clarify: With the same alignment that measured in spec and with no adjustment, that gave 80K miles of even wear with a subsequent set of Michelins, the previous set of Bridgestones wore on the inside of the LF, with any tire of that set rotated to the LF position.

I know it sounds implausible or impossible, that's why I'm looking for possible explanations. I don't have any. It is a mystery to me.

Still own the car and it has 235K miles on it and the current set of Costco Michelin Defenders are wearing evenly with it never being aligned since it was purchased used with 90K miles on it.

Re: Weird tire wear [Re: ledslinger] #5269871 11/17/19 11:12 AM
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BHopkins Offline
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Once a tire is worn uneven, the uneven wear will continue.

When you rotated the tire that had uneven wear to another position, the tread on the inside is less than the tread on the outside. Let's assume that the position you rotated has correct alignment and no reason to cause abnormal wear. For sake of this example, let's also assume that when you found the uneven wear, the outside of the tire was down to 6/32 and the inside was down to 4/32. You are going to leave the unevenly worn tire in that position for the next 10k miles, and that results in 2/32" of tire wear on all tires, including the tire with uneven wear.

The outside of the tire wore 2/32 and the inside, where it was already low on tread, also worn 2/32. So now the outside of the tire is down to 4/32 and the inside of the tire is down to 2/32, already down to the wear marks. But you want to get full life out of the other tires so you continue to drive another 10k miles on the set. Now all the other tires, and the outside of the unevenly worn tire, are down to 2/32 and ready for replacement. But the inside of the uneven tire is bald.

Moving a tire with uneven wear to another position does not stop if from continuing to wear. The damage is done.


In God we trust. All others bring data.

2013 Subaru Outback 2.5i - M1 HM 0W-20 & NAPA Gold filter
2014 Mercedes E350
Re: Weird tire wear [Re: BHopkins] #5269966 11/17/19 01:30 PM
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ledslinger Offline OP
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That isn't what happened. Any tire previously at another position on the car and that had even wear, when moved to the LF had uneven wear.

Re: Weird tire wear [Re: ledslinger] #5270534 11/18/19 07:09 AM
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CapriRacer Offline
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Some fuel for thought.

While excessive camber (anything over 1°, IMHO) is what causes one sided wear, toe is the multiplier. Put another way, a little bit of camber and a lot of toe is worse than a lot of camber with little toe.

Toe is very easy to change and most techs think of setting the toe as part of the procedure. Changing camber and caster is where the work is.

Plus, toe spec tolerances are usually too wide, fooling many techs into thinking that the alignment is good when it's not.


CapriRacer

Visit my web site: www.BarrysTireTech.com
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