tyre question... do I need to change all 4 tyres at once?

[rgbower]

The dealer has spotted that my rear tyres are down to 3mm tread depth and are recommending that I change them. The fronts still have 5mm left.



I read that its highly recommended to switch to Michelin Pilot Sport 4S. (I currently have the standard P-zeros). Is this a good plan? (I live in the wet and cold north of England, not in sunny itally)



But do I have to change all 4 tyres at the same time? its distressing to change the fronts when they have plenty of tread left, but will mixed makes turn the car into an understeering mess?



thanks for advice!

 

[salisbees]

I have a 991.1 C2S and changed from Pirelli to Michelin in the way you wish without a problem. My tyre supplier said that as long as th same make was on the same axle they were happy

 

[Lancerlot]

You're driving a high performance sports car, man - change the boots!

Michy PS4S are a good replacement, but not homologated for your model as far as I know.

Regards,

Clive

 

[Terry]

I recently faced the same decision. The rear tyres were getting down to 3/4 mm but fronts still had a healthy 5mm. Whilst the PZeros seemed pretty good in warmer and drier weather, I have never been impressed by them in colder and wetter weather.

I therefore took the plunge and changed all four for PS4S tyres that are N rated. First impressions after only 50 miles or so are very positive. An added bonus is that the rears have a much better rim protector which may just save the alloys.

My GTS has centre locks so the choice of tyre fitters is limited but the local STS Tyre Pro depot quoted a price of £1060, including fitting, which was pretty competitive. The depot is a Pirelli Performance Centre so they have the necessary torque wrench.

Another company, Black Boots of Chesham, which I rate wanted an extra £40 per wheel to deal with centre locks, a bit excessive I thought!

 

[rgbower]

Thanks all! Everyone seems impressed with the Michelins, so very tempted to follow @terry and change all four … but then again, will another set of Pzeros on the rear wear out just as the fronts reach the end of their life??

… fortunately my T doesn’t have the centre lock problem!

I’ll check the ps4s are Porsche approved first As I’ve just taken out the extended warranty…

 

[Wollemi]

Decent OPC should be very competitive on price for tyres, they will usually price match. Getting them to fit the tyres means that there will be no possible conflict with your extended warranty.

 

[Lancerlot]

You definitely have a more competitively minded PC than mine then. Mine has never come close to matching online prices.
Also, for extended warranty purposes, it matters not who fits the tyres, only that they are from the same manufacturer and carry the same N rating on all corners.
I agree though PC's are usually better for tyre fitting. I've suffered 2 damaged wheels by my PC in the past but in each case it was sorted without argy bargy.

Regards,

Clive

 

[ellism]

My local OPC has just quoted me £1603 for Michelins and £1480 for Pirellis. I'll be very disappointed if I can't find cheaper elsewhere!

 

[Carlton]

I decided to ensure full compliancy and stay with Pirelli P Zero N1 (103Y) and go with the same spec as factory. The two front tyres did not need doing, I have only done 15,000 miles. What I found that with the Michelin PS4 these are N0 rated, I understand these appear to be for the 992 and N1 for the 991. I decided to drive to the Pirelli flagship Performance Centre at Burton on Trent to get them fitted (about 52 miles drive there and back). Got a reasonable price (10% off standard price) plus the PCGB £60 rebate). So in all the cost for two new rear tyres was £483.61

Extremally impressed with the service I received. They laser checked the alignment and all OK. Had a '1 to 1' tutorial through the process. Also no charge for recycling the old tyres which some fitters do charge!

There is a video of the process https://www.youtube.com/watch?v=G1vIJFirZrg

 

[Wollemi]

Also, for extended warranty purposes, it matters not who fits the tyres, only that they are from the same manufacturer and carry the same N rating on all corners.

Technically that’s not so; the warranty document says that no claim is possible if "service, repair or maintenance has been carried out by you or a third party who is not an authorised Porsche Centre”. Basically no one can do anything to youR car other than an OPC. It would, however, be a very strict (or seriously pissed off) OPC that invoked that clause in relation to tyre fitting.

 

[Porschaholic]

The dealer has spotted that my rear tyres are down to 3mm tread depth and are recommending that I change them. The fronts still have 5mm left.



I read that its highly recommended to switch to Michelin Pilot Sport 4S. (I currently have the standard P-zeros). Is this a good plan? (I live in the wet and cold north of England, not in sunny itally)



But do I have to change all 4 tyres at the same time? its distressing to change the fronts when they have plenty of tread left, but will mixed makes turn the car into an understeering mess?



thanks for advice!

Yes you can change just two tyres at a time. As long as you have the same tyres on each axle. Changing all four at once is nice to do, but not necessary. Having a different brand of tyre front to rear will not disturb your handling in any meaning way that a normal person could detect on a street car.


Having said this, it’s always nice to have the same tyres all round and change all four at the same time - money allowing.

 

[Dylan1]

My 2018 991.2 had 4 new Michelin PS4S fitted prior to my purchase last month.
all N rated and great performance in the limited use ive had

I was told tyres that as tyres are the only contact you have with road so makes sense to take care more than any other component !

 

[rgbower]

thanks for all the suggestions ... in the end I got a "good" deal for the rears from the OPC (teeside), including a big discount on the alignment. I decided to stick with the factory Pzero for now... next time maybe I'll switch as I'd expect the fronts and rears to be all worn together.

ps. I was thinking that 10 k wasn't a lot of miles for a set of tires, but then realised that doing loops on the Millbrook skid pan may not have helped... well worth the training session though!

 

[Terry]

I decided to ensure full compliancy and stay with Pirelli P Zero N1 (103Y) and go with the same spec as factory. The two front tyres did not need doing, I have only done 15,000 miles. What I found that with the Michelin PS4 these are N0 rated, I understand these appear to be for the 992 and N1 for the 991. I decided to drive to the Pirelli flagship Performance Centre at Burton on Trent to get them fitted (about 52 miles drive there and back). Got a reasonable price (10% off standard price) plus the PCGB £60 rebate). So in all the cost for two new rear tyres was £483.61

Extremally impressed with the service I received. They laser checked the alignment and all OK. Had a '1 to 1' tutorial through the process. Also no charge for recycling the old tyres which some fitters do charge!

There is a video of the process https://www.youtube.com/watch?v=G1vIJFirZrg

I don't think that is correct information. 992 tyres are coded NA0, 991 tyres are coded N0 or N1.