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Old 12-31-2014, 02:49 AM
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have to agree as long as the tire sizes are adhered too then why not, but try to keep the same tread and tire on each axle......I love confusing people with my tire wear story, and here is my story I had the same wear at the rear as you, the garages could not dial out camber and couldnt see any worn suspension componenets and I really didnt want to start changing out parts in the hope they would hit on the problem and resolve it by chance. Was fed up of the rather stiff ride the OEM 19" alloys/wheels gave me, so I picked up a set of 17" OEM (same as the alloy and tire thats used for a spare)...softer ride and better for the crap roads out here......in addition to this benefit there is NO more uneven wear at rear or anywhere for that matter

(PS i also replaced the tires at rear when i had 19" alloys same wear appeared tooooo soon, so the 17" despite looking a bit small are fine)
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Old 01-01-2015, 09:40 PM
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On all wheel drive cars, the tread pattern has to be same on all 4 tires for AWD to perform properly.
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Old 01-02-2015, 12:05 AM
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Quote:
Originally Posted by LeMansX5 View Post
On all wheel drive cars, the tread pattern has to be same on all 4 tires for AWD to perform properly.
What does a difference in tread pattern front to rear have to do with AWD proper performance?
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Old 01-02-2015, 12:41 AM
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Tread pattern doesn't matter for awd, just circumference matters.

Tread pattern and thus handling characteristics matters for DSC.
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Old 01-02-2015, 02:16 AM
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Quote:
Originally Posted by JCL View Post
Tread pattern doesn't matter for awd, just circumference matters.

Tread pattern and thus handling characteristics matters for DSC.
Even still, I'd imagine that as long as you pick a tire with similar specs, you'd be just fine. I wouldn't mix high performance summer tires with all-terrain mud sloggers, but 2 pairs of the same type ought to be alright.

The DSC can't be THAT sensitive... if you think about it, 99% of the time, all 4 tires are on a patch of roadway that varies a lot more than the tires themselves.. bits of gravel and sand, uneven wear, cracks, etc and it copes with that.
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Old 01-02-2015, 02:38 AM
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It isn't going to harm the DSC, just the driving experience.

DSC expects the front and rear to stick similarly. If they don't, it is either going to intervene too soon, or too late. Neither is good.

In terms of picking tires, you don't so much want similar specs front to rear (that is a given), but similar handling characteristics. You would want front and back to be equally sticky both laterally and under braking; break away on a wet road at around the same point, be similarly progressive, and so on.

Mixing tires can certainly be done. But if the tires don't match, handling will be compromised, particularly at the limit. Many drivers won't notice.
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Old 03-25-2015, 11:16 PM
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Quote:
Originally Posted by bcredliner View Post
What does a difference in tread pattern front to rear have to do with AWD proper performance?
http://www.tirerack.com/tires/tirete...150326031043:s
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