Mixing tyres from the same brand

[del mar 2]

Afternoon,

Really struggling to find a matching set of

295/35/18 and 255/40/18.

What do we think about using a Michelin SS on the rear and a PS4 / 5 on the front ?

Will I crash and die or should i be ok ?

Thanks

 

[Doohickey]

I've got PS4S on the back and PS5 on the front and they are perfectly fine together. Ran the PS4S with Pirellis on the front for a while and that was fine too (or at least as fine as Pirellis get).

 

[MarkMas]

Everyone tells me for 2-wheel-drive cars you just need exactly the same tyres on both ends of each axle, but only roughly the same type of tyres on each end of the car.

 

[Ebenezer]

What's a type of tyre?
Eb

 

[CatmanV2]

What's a type of tyre?
Eb

Crossply vs Radial

C

 

[Tallman]

I would think that it is about having the same grip levels in all conditions. Less grip at the front gives understeer in (longer) corners and less grip at the back would then give oversteer, which in wet conditions is not exactly ideal. Personally I always stick with exactly the same tyres.

 

[CatmanV2]

I would think that it is about having the same grip levels in all conditions. Less grip at the front gives understeer in (longer) corners and less grip at the back would then give oversteer, which in wet conditions is not exactly ideal. Personally I always stick with exactly the same tyres.

Not so convinced. Lots of cars have different sizes, ergo different contact patches and different levels of grip front and rear. Also different forces due to thrust / steering and so on.
OTOH I know very little so <shrug>

I've never really had any issues mixing brands, and sometimes it's been un-avoidable.

C

 

[jasst]

Lets face it, 95% of us don't drive anywhere near the tyres capabilities, so you should be fine.

 

[Oneball]

PS4S is the equivalent of the SuperSport, if it’s any help. As long as they’re a similar spec tyre I’d not be too concerned

 

[Grantoonriusmo]

The dealer I bought my GT from put two new rear tyres on for me. Unfortunately, that meant had Bridgestone RE050A at the rear and PZeros at the front.

I've now replaced the fronts with Bridgestone Potenza Sport's. I have yet to go into a hedge or lamp post running a mix of tyres. However, I did kerb my front alloy, which was down to running PZeros at the front.

 

[MarkMas]

What's a type of tyre?
Eb

And
Summer v Winter

 

[Tallman]

This is what Continental have to say about it. Preferably not, but if it is unavoidable some guidance as to what you can and cannot do:

https://www.continental-tires.com/car/tire-knowledge/tire-change-fitting/mixing-tires

Dunlop advises strongly against:

https://www.dunlop.eu/en_gb/consumer/learn/mixing-tyres.html

And Michelin says new tyres at the back but generally they don’t like it - oversteer is mentioned @CatmanV2

https://www.michelinman.com/auto/tips-and-advice/advice-auto/tire-buying-guide/mixing-tire-brands

Just bear in mind they are talking to the general public, most of whom do not drive 400+ BHP rear wheel driven cars……where any over or under steer will occur to a higher degree unless of course you never plan on using the 400+ BHP - in which case why buy a Maserati?? Unless you just like the clock of course

 

[CatmanV2]

This is what Continental have to say about it. Preferably not, but if it is unavoidable some guidance as to what you can and cannot do:

https://www.continental-tires.com/car/tire-knowledge/tire-change-fitting/mixing-tires

Dunlop advises strongly against:

https://www.dunlop.eu/en_gb/consumer/learn/mixing-tyres.html

And Michelin says new tyres at the back but generally they don’t like it - oversteer is mentioned @CatmanV2

https://www.michelinman.com/auto/tips-and-advice/advice-auto/tire-buying-guide/mixing-tire-brands

Just bear in mind they are talking to the general public, most of whom do not drive 400+ BHP rear wheel driven cars……where any over or under steer will occur to a higher degree unless of course you never plan on using the 400+ BHP - in which case why buy a Maserati?? Unless you just like the clock of course

They also have something of a vested interest in having a typical driver buy 4 new tyres when they get a puncture in one. As well as talking about tyre rotation, which probably hasn't been done since about 1975

Wild generalisations abound. IMHO. But each to their own. I've managed to not crash for some years, and when I have, it was because I was being a dick rather than the fault of whatever tyres I had on the car

C

 

[del mar 2]

Thank you.

Will go with SS on the rear and PS4 on the front.

 

[Doohickey]

Thank you.

Will go with SS on the rear and PS4 on the front.

Worth noting that the PS4 isn't Y rated so has a lower speed rating than the PS4S or the PS5. Whilst I'm unlikely to be pushing the envelope of the speed that's why I went for the PS5.

 

[philw696]

Interesting thread.
I must admit I'm old school and if a vehicle has the same size tyres and wheels front and rear I do rotate them even after listening to much advice given.

 

[Sam McGoo]

Thank you.

Will go with SS on the rear and PS4 on the front.

Check the date on the tyres, as super sports could potentially be quite old.

 

[Sam McGoo]

Interesting thread.
I must admit I'm old school and if a vehicle has the same size tyres and wheels front and rear I do rotate them even after listening to much advice given.

Yeah me too, but with most tyres having an 'inside' and 'outside' now days, the benifit is minor, as its usually the inside that wears quicker on modern cars. Moving front to back can help a little though.