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Old 11-28-2008, 05:11 PM   #1
King Fish
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Member#: 77433
Join Date: Dec 2004
Chapter/Region: SCIC
Location: Fullerton / Murrieta , CA
2008 WRX

Default Question about mixing tires

i need 2 new tires and dont want to pay 250$ a tire for the tires that came with the car.

is it ok on a awd car to mix tires have 2 different brands on the car as long as they have the same ratings ?

ive been getting mixed anwsers from people and would like to see what you guys say.

will it put more stress on the car bad for the diffs not recommended?

just wondering what your guys thoughts are are before i go out and get new tires
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Old 11-28-2008, 05:20 PM   #2
Scooby Specialist
Member#: 104922
Join Date: Jan 2006
Chapter/Region: MAIC
Location: NoVA
2016 WRX


The owners manual says something like within xx" of the diameter. Check that.

Ideally, you don't want to mix different brands and depths. Especially with a shiny new car. If the size is dead on, I can't really see you having any problems.
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Old 11-28-2008, 05:22 PM   #3
Mike Wevrick
RIP 1/19/64 - 7/23/11
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Member#: 24654
Join Date: Sep 2002
Chapter/Region: NESIC
Location: saraseager.com
1957 Taggart Comet


250$ a tire
You can get many excellent tires for half of that.

is it ok on a awd car to mix tires have 2 different brands on the car as long as they have the same ratings ?
Generally no. Even if they have the same size marked on them, the actual diameters can vary quite a bit from brand to brand. Plus they will have different traction, braking, cornering etc characteristics ...

So, in summary yes you need 4 new tires.
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Old 11-28-2008, 05:26 PM   #4
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Member#: 125600
Join Date: Sep 2006
Chapter/Region: South East
Location: the OLD 9-0-4
2005 STi perrin stg2
World Rally Blue


you want to stay with tires with the same tread depth (or very close) so they are the same diameter...i ran two different sets of tires for a few months- front set had 1/32" tread and rear had maybe 4/32"- however, the car never acted strange; no issues with the center diff/ no strange noises

i didn't have a choice, but if you can afford it...get 4 tires

this is just my experience with running tires that were not within subaru specs, YMMV

Last edited by fiveoh88; 11-28-2008 at 05:47 PM.
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Old 11-28-2008, 06:24 PM   #5
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Member#: 56126
Join Date: Feb 2004
Chapter/Region: MWSOC
Location: IA
2012 VW CC


you could always try selling the two tires that you still have and buy four new ones. Think of it as a good time to upgrade
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Old 11-28-2008, 07:34 PM   #6
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Member#: 61950
Join Date: May 2004
Chapter/Region: Tri-State
Location: Northern NJ
2008 Outback
big blue wagon


My dealer has told me that the tires have to be the exact tread pattern. .

From Subaru.com
Do I have to replace all four tires on my AWD Subaru?

All of the tires on your AWD Subaru must be within 1/4 of an inch of rolling circumference (part that touches the road). This is because of our All Wheel Drive System.

Proper rotation of the tires at the appropriate service intervals will increase the life expectancy of your tires. This will also ensure that all four tires stay relatively equal in their tire tread wear. When vehicles are serviced, tires should be routinely checked to ensure that the alignment and tires are in good working.
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Old 11-28-2008, 08:23 PM   #7
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Member#: 161678
Join Date: Oct 2007
Location: Marquette MI
2002 wrx V5 RA swap


I will always recommend to any allwheel drive car owner to replace all the tires at the same time. Center diffs are expensive why chance it.
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