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      10-03-2013, 02:48 PM   #1
Daft
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Is it ok to mix PS2 with PSS tires?

I will be needing new rears soon. I have Michelin PS2's all around. I would like the newer gen PSS tires in the rear, but must I change the fronts to PSS as well? I'd rather not as it'll be a waste of money as there is still much life in the fronts. Please advise.
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      10-03-2013, 02:53 PM   #2
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      10-03-2013, 03:01 PM   #3
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Daft, you will be fine. Love your car BTW
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      10-03-2013, 06:15 PM   #4
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Perfect. Thnx!
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      10-04-2013, 06:58 PM   #5
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This has been beaten to death, but here's a summary:

Michelin specifically recommends against mixing the PSS with the PS2, or with any other tire.

Some people have done it. Most have said it was OK for them.

Mixing is always somewhat of a tradeoff with regard to handling balance. How significant of a tradeoff will vary. It would be most likely to become an issue as you approach the limits of traction, either during spirited driving or an emergency situation.

My thought is, if you're never going to push the car hard enough to notice the difference with the mix, save yourself some money and buy something cheaper.
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      10-04-2013, 07:35 PM   #6
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Ben, I agree with you however, would you also not agree that sometimes companis have to say things like that? To me, mixing PSS with PS2 is OK, as long as it is not on the same axle.
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      10-05-2013, 01:03 PM   #7
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Quote:
Originally Posted by Daft View Post
I will be needing new rears soon. I have Michelin PS2's all around. I would like the newer gen PSS tires in the rear, but must I change the fronts to PSS as well? I'd rather not as it'll be a waste of money as there is still much life in the fronts. Please advise.
You can absolutely run different tires front and back with absolutely no safety or performance penalties. I feel that a lot of people just "play it safe" when it comes to this kind of thing. Upgrade when you need to!

I constantly run different brands, widths, and compounds front to rear based upon what I am doing with the car; and some pretty extreme ones too. The car doesn't "know", nothing happens with DSC, it doesn't become "off balance". The car just behaves exactly how you just set it up. Here are a few examples of mid-matched setups I have run:

Stock 245 PS2 front, 275 R-comp rear
265 PS2 front, 305 R-comp rear
275 full racing slick front, 255 PS2 rear
255 Yokohama front, 255 PS2 rear
255 on stock 18x9.5 front, 255 on stock 18x8.5 rear

Each time the car does not act funny, DSC, cruise control, TPMS all operate perfectly; and all of those systems monitor differences in wheel rotation, tire slip, etc. The car DOES act how you set it up though; sticky tires in the front and you will oversteer more easily, sticky in the rear and you probabbly won't even notice (but if you REALLY push it, it will understeer.)

Save the money and upgrade your tires when you need to!!!! Especially when the grip difference between PS2 and PSS is so close, there will be 100% no ill effects.
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      10-07-2013, 06:53 PM   #8
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I did this for a while without issue. However, when I finally wore out the PS2s and had all 4 PSSs it made a big difference. Given my last impression was on worn PS2s, but having all four PSSs feels great. I was in the same boat, but if I had to do it again knowing what I know now I would have gotten all four PSSs.
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