Mixing tyres

[Pete.S]

Apparently Michelin PS2's are on back order from July, no one seems to have any stock (or at least I can't find anwhere that has them). Recently bought 2 new ones (that I put on the rear) that I luckily found at Micheldever, they have no more stock, and now the fronts need replacing (one's flat, the other is nearly out of tread). I've put the Continental spare on the front, so now have no spare atm.

1/ Anyone know anywhere that has any PS2's (South East region)?

2/ Anyone ran different makes on their B6? The guy at Micheldever suggested running 2 Contis on the front shouldn't pose too much of a problem as a temporary fix, any thoughts?

3/ Seems very slack on Michelin's part to allow stock of a fairly popular tyre to run dry for so long, anyone heard any rumours about problems at the company?

[Scotty]

Have you called Michelin? I'd really don't think it's advisable to mix and match.

Not a very helpful post I know.

[Amosu]

Think as long as you match front and rears, you can mix without too many problems, although your handling may not be the same as you would expect normally.

With regards to the tyres themselves, I'm guessing you tried all the big name websites, such as Kwik Fit etc?

[Scotty]

I thought you got "wind up" within the Torsen but I may be wrong.

[Amosu]

I thought you got "wind up" within the Torsen but I may be wrong.

I was told this was only an issue with the RS due to slightly different set up? I'm not technician, so I guess you would be better off checking with your local dealer and see what they say

[B6S4John]

I thought you got "wind up" within the Torsen but I may be wrong.

You can't get wind up with a torsen. it's not a friction type diff. ie if you lift one end of the car off the ground, you can even turn the wheels as if there is an open diff.
I know this as I have stripped and built a few over the years.

[Scotty]

Perhaps I was thinking of my old Haldex quattro.

[B6S4John]

This will explain why Scotty http://www.audiforum.nl/Technique/Quattro/quattro.html

[Scotty]

Cheers for that.

I've read before that people are saying Haldex with take over from Torsen as it's better but having moved from Haldex to Torsen, I couldn't agree less.

[Pete.S]

Update: now got 2 Contis on the front, handling seems fine, no problems.

Rang Michelin, they are not expecting any more stock of PS2's 'til November/December, so anyone running them, be gentle!

What's confusing is that there are 3 types of PS2: the standard, an N2, and an N3 (the latter 2 being preferred Porsche fitment). BUT, the standard PS2 that all tyre dealers (including Michelin, I asked) recommend for our cars is 95Y, though the factory fit Contis are 91Y. The N2's are 91Y, but for some reason, which I couldn't quite get out of the guy at Michelin, they are not recommended for Audis. I also remember on my B5 (17" Avus) that there is (was?) a particular "B" compound on the 17" PS2's specifically recommended for Audis. Confused!

[Scotty]

The tyres on the S4 need to be High Load which I believe is 95. The F1's I have aren't marked as such but I called Goodyear and they confirmed they are.

[Pete.S]

So why are the factory fit Contis 91??