Vettmann17

Me too. I have the stock Goodyear run flats.

Chuck A

yea i was in the same boat i kept getting HP on my display, i had way more than needed, i removes some of the air

madmatt9471

32 PSI tires and 100 ft lbs on the lug nuts!

Thanks,matt

Kale

My nittos like about 32psi

my gsd3s were great around 30.

TorchRedRocket

After 6k miles on my new Hankook V12 Evos @ 30psi, the outsides have worn slightly more then the centers. I'm going to try 32psi for a few thousand miles and see how that goes.

steve8

Interesting. I just got these tires and while I love how quiet they are they do feel surprisingly soft. I'll have to keep a close eye on them and maybe try 32.

coolarrow

One of my pet peeves is when some $10/hr "mechanic" (or in this case "tire buster") just takes it upon himself to return your car to to you, out of the the manufacturer's spec. Does he really think that he knows more than the educated engineers at GM? In fact, I asked one guy at a tire shop that also put about 45 psi into my tires, where he received his automobile education/training. He replied, "huh?". Then I told him to put my tires at 30 psi to not make me ask his boss if I need to bring him a tire book!

c5BlackBeauty

Redundant but.........yes 30 psi cold in accordance with the manual.

TorchRedRocket

The SECOND I drove off of the lot at the tire shop, I too couldn't believe how much softer and "squishier" the Hankooks were compared to the OEM runflats. I'm in the minority, because I actually loved the handling with the runflats. The car drove like it was on rails. Yes, how loud the runflats were drove me nuts, and the price too (I would never buy them at that price,) but handling-wise, the runflats won hands down for me.

rich goepfrich

Well I guess you could always use the old chalk trick. Get a big piece of sidewalk chalk and run a line across the tread sidewall to sidewall when the tire is hot. Drive a block or two and look at the chalk mark and see where it's wearing and adjust from there.

Virtual Geezer

45 is ridiculous. Bet the car road harder than *****'s heart.

Rodster21

that's what I run.

Buggyman

Your are sooo right. That was my first tip off that they were over inflated. They rode as bad or worse than the run flats they replaced. By the time I got home my sensors were showing they were over inflated. I never guessed they were at 45 lbs. After lowering them back to normal the ride was MUCH improved.

Toque

I emailed the tire vendor directly (for my Z06, Murano, and GTI)
Gave them my tire type, size, and vehicle they are mounted on.
I'm running 19/19 CCW's with Continental tires (275/30-19, 305/30-19). I wanted to know for sure.
They should have all the specs of my vehicle (weight). I also included my vehicle weight in my email anyway.
They all responded within 24hrs exactly what PSI I should be running for optimum tire wear.
They said 32 in the front and 30 in the rear.

Toque

rws.1

28 psi (cold) all around in summer heat
30 psi (cold) all around in spring and fall

J|A

I got the original C6 Run flat 18/19 and last year i raised it to 42psi, i think the car handles better at least with the run flat tire.

i had 34psi before.

But you are right, it is too high but for me it was perfect. (i switch the tires more often maybe but...)

//J

Mr.Bill

42, Thats ok if you like a hard ride and have a lot of money for new tires.

SeanMounce

Look at the sticker on the inside of your door jam.

BOTYNV1

as stated 45 is a lil' high keep in the 30psi range -

Jewjenk

Oh no, not again, you would think......................
But then again these are old forum members asking the same question again and again..............:beatdeadhorse :