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AWD tire issue #4467133
07/22/17 12:44 PM
07/22/17 12:44 PM
Joined: Jul 2012
Posts: 238
New York
PeterGreen Offline OP
PeterGreen  Offline OP
Joined: Jul 2012
Posts: 238
New York
So I drive an Acura TL with the SH-AWD system, and have always been careful to keep all four tires the same condition. This system is most of the time operating in FWD, except when the computer tells it to apply torque to the back wheels, and then apportions the torque to the outer tire on curves.

I got an unrepairable puncture right at the shoulder and my current set of tires has about 20k on them, so there is still a lot of life left in them. They are Continental DWS-06 tires, which aren't cheap--around $170 at tire rack and around $200 at a local guy. So I bought one new tire as an emergency replacement so I could get to work.
So now I have three tires that are at half life and a brand new tire. Should I get a second to match the replacement tire so at least both tires on the same "Axle" are the identical diameter and state of wear. Buying three new tires is a no go, I am a married man and the Mrs. would not understand.

Is it necessary to buy tires in pairs or a foursome with this AWD system, I think 99% of the time the front and rear wheels are not locked together while driving, so I doubt there would be much damage to the AWD system by having two newer tires.

Am I over thinking this whole thing and should I just stay with three old and 1 new.

Re: AWD tire issue [Re: PeterGreen] #4467152
07/22/17 01:17 PM
07/22/17 01:17 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
What does the manual say about tire replacement? I'd show THAT to the "Mrs."

Re: AWD tire issue [Re: PeterGreen] #4467157
07/22/17 01:18 PM
07/22/17 01:18 PM
Joined: Jan 2003
Posts: 886
Colorado
newtoncd8 Offline
newtoncd8  Offline
Joined: Jan 2003
Posts: 886
Colorado
From your owner's manual:
"It is best to replace all four tires at the same time. If that is not possible or necessary, replace the two front tires or two rear tires as a pair. Replacing just one tire can seriously affect your vehicle's handling."

On Audi and Subaru vehicles, there are additional warnings about mixing tires with different degrees of treadwear that could damage the power train.

The Acura doesn't state that.


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Re: AWD tire issue [Re: newtoncd8] #4467159
07/22/17 01:20 PM
07/22/17 01:20 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: Curtis Newton
From your owner's manual:
"It is best to replace all four tires at the same time. If that is not possible or necessary, replace the two front tires or two rear tires as a pair. Replacing just one tire can seriously affect your vehicle's handling."

On Audi and Subaru vehicles, there are additional warnings about mixing tires with different degrees of treadwear that could damage the power train.

The Acura doesn't state that.


One option not mentioned in the owner's manual is that you can have the new tire shaved to the same tread depth as the other three...which is what I'd do, considering the option is to buy at least one more tire.


Thick vs Thin test: 15k / 43k miles complete
Re: AWD tire issue [Re: PeterGreen] #4467163
07/22/17 01:23 PM
07/22/17 01:23 PM
Joined: Oct 2005
Posts: 306
TN
tnt31 Offline
tnt31  Offline
Joined: Oct 2005
Posts: 306
TN
I have no idea at what it cost but it is my understanding you could have the new tire shaved to match the other three.

Re: AWD tire issue [Re: PeterGreen] #4467165
07/22/17 01:24 PM
07/22/17 01:24 PM
Joined: Aug 2003
Posts: 10,774
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 10,774
Buffalo, NY
I've seen plenty of AWDs with the fronts worn much more than the rears, but we're talking pairs. It almost makes sense to keep one used half worn tire around in the event you have an non-repairable tire.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: AWD tire issue [Re: PeterGreen] #4467168
07/22/17 01:29 PM
07/22/17 01:29 PM
Joined: Jan 2008
Posts: 10,666
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,666
OH
Which tire was it? Usally the front, passenger side one takes the most abuse from weight and more potholes being on that side. If you do buy another tire then you can save the current one as a spare or sell it on CL.

Re: AWD tire issue [Re: PeterGreen] #4467173
07/22/17 01:33 PM
07/22/17 01:33 PM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
I always consider buying a new spare at the same time as new tires as a calculated risk. One I don't always follow and then I read of an experience like yours and...

Thank you for sharing this.

IMO, I would change out 2 tires at a minimum.

I have no experience with the tire shaving cost factor...perhaps someone could chime in?

I suppose some of the equation would depend on whether you are happy with your current tire brand and model and intend to stay with it next time.


Multiple Diesel and Gasoline vehicles
Re: AWD tire issue [Re: PeterGreen] #4467187
07/22/17 01:52 PM
07/22/17 01:52 PM
Joined: Jan 2016
Posts: 321
Kansas
ejes Offline
ejes  Offline
Joined: Jan 2016
Posts: 321
Kansas
If it were me with this situation with all the options laid out in the previous posts, my top desire would be to replace all four tires if at all possible. Best case would be to replace with exactly what I want or what is on it. However you state that is rather cost prohibitive for you. So, given the costs of 2 or 4 new ones, or a new one and shaving one down, I think I would look for a lower priced quality tire that would would be close to the replacement value of just 2 of the pricey ones I already have (in this case the Conti DWS-06's). However,

My solution then would be 4 new Sumitomo HTR A/S P02 which goes for 97 bucks and some change on Tire Rack. However, buying one tire and shaving it down would be the cost of the tire, mounting, etc. plus around 40 bucks to shave it.

Re: AWD tire issue [Re: PeterGreen] #4467200
07/22/17 02:17 PM
07/22/17 02:17 PM
Joined: Oct 2010
Posts: 1,781
.
Danh Offline
Danh  Offline
Joined: Oct 2010
Posts: 1,781
.
TireRack will shave a tire to your specs and sent it to you. That may be a good option- save the new, full tread tire for the for the next replacement cycle.

Re: AWD tire issue [Re: Danh] #4467202
07/22/17 02:23 PM
07/22/17 02:23 PM
Joined: Jan 2008
Posts: 10,666
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,666
OH
Originally Posted By: Danh
TireRack will shave a tire to your specs and sent it to you. That may be a good option- save the new, full tread tire for the for the next replacement cycle.


Good idea or call around for tire shops in the area that can shave it.

Re: AWD tire issue [Re: ejes] #4467205
07/22/17 02:25 PM
07/22/17 02:25 PM
Joined: Jan 2008
Posts: 10,666
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,666
OH
Originally Posted By: ejes
My solution then would be 4 new Sumitomo HTR A/S P02 which goes for 97 bucks and some change on Tire Rack. However, buying one tire and shaving it down would be the cost of the tire, mounting, etc. plus around 40 bucks to shave it.


Looks like a nice tire. Plus about $60 or so for shipping. Amazon has some Nokian zLine A/S tires for $105 and free shipping. Here is a review of them:

http://tirereviewsandmore.com/nokian-zline-as-reviews/

Re: AWD tire issue [Re: PeterGreen] #4467216
07/22/17 02:44 PM
07/22/17 02:44 PM
Joined: Mar 2011
Posts: 271
NM, USA
pkunk Offline
pkunk  Offline
Joined: Mar 2011
Posts: 271
NM, USA
What happens is the wheel speed sensor tells the computer that it's running at a different speed than the others causing brakes to be applied to prevent the (apparent) skid. Not good for your brakes and the poor computer is having conniptions.


2008 Mini Cooper Clubman (toad)
2000 Mercedes ML320
1994 Dodge 2500 Cummins
1999 Ford F53 V10 Coachman Motorhome 34ft
Re: AWD tire issue [Re: PeterGreen] #4467242
07/22/17 03:47 PM
07/22/17 03:47 PM
Joined: Apr 2010
Posts: 13,534
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,534
Chicago, IL
Tires on the same axle should be at the same wear level for AWD. This keeps the differential for that axle from working too hard due to a massive difference in grip, rolling diameter, etc.

Front to rear it's less of a problem, but obviously it is a safety risk on any car to run two tires that are almost bald.


2017 Chevrolet Corvette Grand Sport
Re: AWD tire issue [Re: newtoncd8] #4467243
07/22/17 03:48 PM
07/22/17 03:48 PM
Joined: Aug 2005
Posts: 7,128
Leamington, ON, Canada ..... r...
Papa Bear Offline
Papa Bear  Offline
Joined: Aug 2005
Posts: 7,128
Leamington, ON, Canada ..... r...
Originally Posted By: Curtis Newton
From your owner's manual:
"It is best to replace all four tires at the same time. If that is not possible then replace the wife


crackmeup


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