Do you have to replace all 4 tires on AWD Subaru?
The risk is damage to the Multiplate Transfer Clutch in the AWD system.
Subaru states that the circumference of all four tires must be within 1/4 inch, which calculates to ~1.3/32 difference in tread depth..
Should you replace tires in pairs?
Tires should be replaced in pairs, both in the front, or both in the back. If your vehicle is an all time all wheel drive, manufacturers recommend replacing all four tires to keep the rotations per mile uniform. It’s also recommended that new tires go on the rear.
Can I replace just one tire on my car?
To replace just one or two tires without adversely affecting performance and safety, the other tires need to have an adequate amount of tread left. If your tires are pretty new, you may be able to get away with just replacing one or two tires.
How long do AWD tires last?
There is a general consensus that most tires should be inspected, if not replaced, at about six years and should be absolutely be swapped out after 10 years, regardless of how much tread they have left.
Can you put studded tires on AWD?
Studded tires are not needed on an AWD vehicle.. 95% of the time, the roads are dry.. Studded tires get troublesome real fast on dry roads.. With studded snows you have to drive SLOWER when on dry pavement.