I just bought new tires – Pirelli P-Zero Nero M&S P235/45ZR17 so fare I’m happy with them (a little soft sides but inflating them to 44 psi fix that problem). I just have one question I just notice that my tires Traction Grade are “A” and not like it says on the internet “AA” :
1010tires
tirerack
Can anybody clearifai this ( what it say on your tires) .
I doubt ther is any difference between “A” and “AA” but I though I might ask

 

Problem with those ratings are that the tire companies regulate themselves. There is no indepentant testing that comes up with the A or AA rating, so its all subjective.

 

Interesting, i have PZ M+S as well and they all say "Traction AA".

 

Awsome tires in my opinion.....Interesting,....I'll check to see what mine say.

 

What is the maximum psi stated on the sidewall? It strikes me that inflating them to 44 psi is too high and you'll wear them out faster and have a very stiff ride.

 

I have the Exact same tire and size on my Q45 wheels, had them put on last week. I love them. I think mine are inflated around 40 psi, but im going to lower them down to 37 or 38 psi all around. They grip just as good as my Z rated summer tires I had previously. Im hoping these will do ok in the snow, I havent heard anything bad.

My only concern is the life of these tires, they seem pretty soft for an All-season tire. Overall though, I like them, very quiet and smooth.

 

awsome tires!

 

i will go check mine sometime for you. i have the m+s.

 

[QUOTE=Bobo]What is the maximum psi stated on the sidewall?QUOTE]

It's51 psi.

 

Given that 51 is the maximum psi, how did you arrive at 44 psi being the best tire pressure to inflate them to? Was it trial and error or did the company you bought them from recommend that tire pressure?

 

Actually the sale person at the tire store told me that he has those tires for 2 years and he keeps them at 44psi. I at first inflate them at 36 psi and I did not like it (to soft on cornering) so I inflate them to 44psi and I like it better that way.

 

Well you're still 7 psi under the maximum.

I just bought Yokohama Avid H4S (215/60R/15) and have set mine at 36 psi. National Tire recommended 35 psi and the placard in the console recommends 33 front/32 rear. Higher psi helps fuel economy and tread life to some extent and in your case handling as well.

 

Tire manufacturers underrate max tire pressure for legal reasons and temperature changes. There's a large safety tolerance between max tire pressure and pressure where the tire will blow out. Many auto-xers inflate the tires 5-10psi or more past the max to increase contact patch and stiffness. Running at 44psi is perfectly fine if they suit your tastes and driving.

 

I have these tires...almost 8k on them...and no noticeable wear....has gone thru 2 drag racing events and many street races....i also corner harder than your average joe...I will report back when the tires hit 15k

for reference..I keep my psi at 40 all around...

 

Just as an update, i've had mine for approximately 27k miles and other than the abnormal wear from when i took too long for alignment after dropping the car - the tires have been holding up pretty well. I vary the pressure between Nissan's recommended all the way up to 38psi.

 

Best Tire I have ever owned. Everything a sport sedan could need. Put almost 40,000 on these already. Only damage has been from the harsh winter potholes. The wear life is exceptional, handling is amazing.

Smartend up this year, putting some 16" steel wheels on with Dunlop Winter Sport M3, instead of running and ruining my 18s.

 

I checked my tires and they say "A" also instead of "AA".....not sure whats up with that though.

 

I have those tires. I love em. They're awesome in the rain too.

 

40,000??! I am at 30,000 and I got to get a new set already.

whats your driving habbit?