Need new tires

JDG · #1 (**permalink**) 01-14-07, 06:58 PM

Got my V in April 06 and have 22K on it...so need new tires...badly. Anyone have any great ideas or just go with the original Pirelli's? Tire Rack recommended Yokohama ADV S4's and I'm wondering if anyone else is using them?

I live in the Midwest and the make runs from Chicago to Detroit each week - hence the high mileage - generally at 80 avg mph or above.

This is a great car. I used to run 5 series BMW's and this a lot more fun to drive and way less painful for long trips.

Any help appreciated.

caddyv8v · #2 (**permalink**) 01-14-07, 08:42 PM

nice tires, but i was not aware that they had run flats. if not, seems kind of risky not having any spare/tools etc, but i bet it would have a better ride.

JDG · #3 (**permalink**) 01-14-07, 11:31 PM

thanks...excellent point and one i hadn't considered. I'm going to talk to my tire guy tomorrow and see what he thinks. i may take the risk of not having the run flats....AAA is just a call away but they better have a flat bed. It seems like with OEM tires if I have a flat anywhere except a major metro with a good tire store nearby, i'm going to be hosed anyway. Same if I get the S4's. So I might as well have tires that will keep me on the road when i'm driving. The Pirelli's were ok but they broke too quickly for my taste and they were absolutely crap in anything wet. If I do get a flat, I guess I can kill time talking to OnStar while I wait -- prolly should put a DVD in the trunk to kill some time too.

caddyv8v · #4 (**permalink**) 01-15-07, 07:51 AM

good luck with your selection. let us know the outcome.

Bartlett_2 · #5 (**permalink**) 01-15-07, 02:38 PM

I just replaced my rears at 20k on New Years weekend with the stock pirelli's. Suprisingly, the fronts were near perfect, but the rears had the nylon threads coming out of the rubber. I wanted to go with something else, but the fronts were in too good of shape to replace, so that's the only reason I stayed with the stock tires. Cost almost a grand.

caddyv8v · #6 (**permalink**) 01-15-07, 09:49 PM

ouch, a grand for 2 rears. i gotta stop with the tire burning.

Bartlett_2 · #7 (**permalink**) 01-15-07, 11:21 PM

Yeah, they are NOT cheap.

JDG · #8 (**permalink**) 01-16-07, 04:07 PM

The Pirelli's are expensive. The Yokohama ADVAN S.4's cost me $1,152 for a full set of 4. Unfortunately, I'm out of town until Saturday so the road test will have to wait. I'll let you guys know how they work out.

CadV · #9 (**permalink**) 01-16-07, 04:37 PM

Unless the page I was looking at is incorrect the STS-V has...

P255/45R18 front
P275/40R19 rear

I used BF Goodrich g-Force T/A KDW NT on my CTS-V and they are a phenominal tire all around. They really shine in the rain and last a long time. They are not a run flat tire though.

I would drop the profile on the fronts and backs.

Go 255/40/18 fronts and 275/35/19 backs and get the dealer to change the pcm for you.

Here is some info on the tire.

Fronts
Backs

ssstealth · #10 (**permalink**) 01-18-07, 09:36 PM

Quote:

Originally Posted by CadV

Go 255/40/18 fronts and 275/35/19 backs and get the dealer to change the pcm for you.

The STS-V does not require a PCM change for tire size. The re-calibration can be done with the NAV system using GPS data.

Check your manual... there is a procedure for calibrating new tires and the speedometer.

CadV · #11 (**permalink**) 01-18-07, 09:55 PM

Quote:

Originally Posted by ssstealth

The STS-V does not require a PCM change for tire size. The re-calibration can be done with the NAV system using GPS data.

Check your manual... there is a procedure for calibrating new tires and the speedometer.

I don't have mine yet should get it tomorrow or Sat. But thanks for the heads up that is awesome.

JDG · #12 (**permalink**) 01-20-07, 04:14 PM

Picked up the car today with the new tires...DEFINATELY stickier and no noticeable change in ride/noise but I haven't had them up to speed yet. Car seems more nimble but that may be only the effect of having had to drive a Toyota SUV to Detroit this week. More later...

JDG · #13 (**permalink**) 01-22-07, 03:52 AM

Well...380 miles from Chicago to Detroit in bad weather on the new rubber and I have to say: Great ride, quieter and smoother than the Pirelli's, much better grip (wet and snow) and overall better control. Hearty endorsement of the Yokohama Advan S.4's

wesleyb200 · #14 (**permalink**) 03-02-07, 12:04 AM

I have 12,000 miles on my original tires and I have a thumping noise from the fronts. Has anyone gone to a non-runflat tire? I have used Good Year's F1's on my STV Cobra Mustang and they were great!-lasted over 25,000 miles. But, what about not having a spare tire? Does the "Fix a Flat" Kit work? Is it a major concern with On-Star and AAA? Tirerack.com has many reviews about runflat problems with noise and extra costs. What do you think about the exposure with non-runflats?

ssstealth · #15 (**permalink**) 03-17-07, 09:34 AM

DO NOT put "Fix-A-Flat" in a tire with a pressure monitoring system! This may harm the sensor.

My Cadillac service advisor told me that he has seen people come in who have driven weeks on the run-flat tires and ZERO pressure and that the tires look fine. No tire shop is keen on the thought of repairing a run-flat tire though, even in the tread area.

JDG, How are the Yokohamas doing now that you have some miles on them. I hear some talk about them self destructing after 2000 miles and getting crazy loud.

Thanks, I'll bet a lot of us will be doing the tire thing soon on this board.