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Not recommended.

 

Rear tires are gone in 12-13K. That's no time. For street driving, that's just a couple-three months. I have had Porsche techs fuzz over PS2 N1s on the front and PS2 N2s on the rears. However, Mischelin says that is OK as long as the same 2 tires are on the same axle. Michelin however doesn't like PS2s on one axle and PSSs on another. On the track, it may make a difference. Those rear Potenza's are expensive, I would just put a few more thousand miles on them, but that is your choice. On the other hand, they can be sold on Ebay if you want the bother.

 

You can give it a try, but I definitely wouldn't recommend. You might not notice anything with a minivan or so. On a sports car it can downgrade the handling and characteristics of the car.

 

I used to think it would be no big deal. It is hardly noticeable on tires with little grip - all season minivan or sedan tires. With high performance tires with lots of grip you can feel the odd sensation of sudden oversteer when maneuvering at speed. I experienced on my old E36M3 - lane changing on the freeway it felt like I had rear steering and it was almost unpredictable and very alarming.

 

I was told that is a big no no!! Don't do it.

 

Don't mix tires. A 911 will not like it and it will let you know. You never know what you will get until you do, but I can tell you emphatically from experience with these cars you are not benefiting the car's performance by doing it.

 

I'm afraid to ask what happened to your tires?

 

I think he was asking about Damon's statement "emphatically from experience".

 

i have michelin pss on rear axle and toyo 888 on front - was racing on the track and everytning was very good without any problems

 

Driving on the track with tires that have drastically different temp/grip profiles? Unless you were putting it around the track, you're a much braver man than me.

 

Just out of curiosity, is the difference in grip between 2 manufacturers that different than the grip between new tires on one axle vs old tires on the other from the same manufacturer?

Nels

 

I hear on 2wd cars that is ok but never optimal but on our AWD cars its a definite no. I can only imagine your front tires pulling your rears that want to go the other way or vice a versa (rears pushing the fronts)

 

ouch, just read dat