dmcconnell

FYI, Great performance for an All-Season tire.

However, after 7K miles, the fronts are down to 6/32" and the rears are 8/32" (new tires are 10/32" treadepth, less than 2/32" will not pass inspection). Guess it's time to rotate the tires.

So it looks like my mileage from the tires will end up being 20K - 25K miles. The UTOG treadwear rating is 400, but at $200 each, the fun per mile gets expensive.

Scooter

fine with me...i hardly drive my baby during the week anyway (still under 14K after a year and 7 months)...by the time the tires need replacing, i'll b sellin it for the '04 Z Roadster

Bluto

How much did you get out of the stock Michelins (300 treadwear)?

I should get near 30k and was hoping for the same (or more) with the Pilot A/S

Scooter

and BTW, what r the specs of your tires???

fast_daddy_car

I only have them (pilot sport a/s) on for a month, and finally got to try them in some cold wet conditions. Much more secure feeling over the stocks. No gliding on wet curves. I can spin them from a wet start, but takes more gas to do so and it hooks up quicker. I'm glad I got them. Almost went for the FZ1, which were $50 per tire cheaper locally (I paid $209 installed for the Michies), but another thread here someone said the FZ1 was not good at all in cold and snow.

TypeSKid

The stock tires suck ass!


I am definitely going with the bridgestone S03's.

I'm convinced that those tires are the best for our car.

acura_service

actually 2/32nds will pass inspection, it has to be less than 2/32nds at 2 adjacent treads - i would rotate every 3000, and rebalance fronts every other rotation - you will get very good life out of the edges that way

dmcconnell

I got 33K miles out of the stock Michelins.

Marine1

To date, I have gotten 60K out of the stock tires. They are not great, but they do a lot of things well.

Scooter

u ghost

u've been around for over a year, and u never post...sup with that??

Zapata

60k? Dang! You must rotate and balance every 3k miles!

acura_service

i do mine every 3750 - - i always rotated twice as much as reccomended

Zapata

I rotate every 3k, but balancing? Only, the service tech knows..... I wouldn't waste my time on stock tires but once i get good tires it's different story.

frederix

dmcconnell - I've had my new tires for about 7500 miles so i just rotated them. They don't seem to be wearing as fast as yours though. What pressure do you run yours at?

acura_service

that makes no sense, you balance to compensate for any loss of rubber (weight) - weather or not the tires are sticky enough for your liking has nothing to do with driving down the road at 70mph with your steering wheel shaking

fast_daddy_car

My tire place's computer actually had this size listed as a CLS replacement, and showed a 35psi recommendation. He said if I went to something like 40 I would wear them out much faster.

Scooter

anyone know the most ideal pressure for our cars in the Pilot Sport A/S's??? i would think somewhere around 36, maybe higher

Marine1

Nope, I rotate them like it says in the book. Every 7500 miles. I am due for some new tires now. I have yet to determine what I will get next. I do want something that has the correct load rating and is good in the wet as well as the dry.

fast_daddy_car

Why do you thing higher? It is extremely close in size to the stock tires.

Scooter

well i normally run my stocks at between 34 and 35 anyway...i just thought u had to run these higher b/c it's a wider tire

frederix

Maybe. Also, the max inflation for the Pilot A/S is 51psi vs. 41psi (I think) for the stock tires. I had snow tires on my ITR that needed more pressure than the stock tires even though they were the same size. Does anyone care to comment on this or know the proper inflation for 235/45s on stock rims? I usually keep them at 35psi.

Bluto

Any rubbing with the 235s and Comptech Springs????

fast_daddy_car

That is just the max pressure the tire can take before exploding off your rim at high speeds and temperatures, has nothing to do with what you should set the tires for.
The Pilot A/S has Kevlar cords, must be strong stuff.
They also have a much flatter crown than other tires, so putting in too much air will distort them and they will wear faster, this tire has different rubber compounds throughout various parts of the tread.

frederix

Nope

EricL

RE: no rubbing with 235/45-17 on stock (7") rims with Comptech springs (the problem comes with the wider wheels and different offsets). If someone comes out with an exceptionally "wide" tire, this could change, but to date, I've not heard of a single problem.

-- RE: That image has incorrect data --

The owner's guide for the CL Type S clearly states that a 93XL rated tire is required.

As far as "going" above or below the manufacturer's load rating, it's up to the user to decide on that (the Acura factory requirement is quite clear).

So, there are at least two things wrong with the image:

1. The load rating (presumably from the Michelin site) of 90V (should be 93XL)
2. The "suggested" pressures are just that, suggested. I would caution someone to use those guidelines without a good double-check. And, I would not use those pressures for other makes of tires. (For example, the pressure on my 235/45-17s are just around 40PSI [dead cold]. I know a person who ran the Toyo T1S Proxies with 35PSI and they had terrible wear that showed signs of “big time” under inflation!)
3. IMO, the 88 load rated tire is based on their use of 90 for factory rating and I'd stay away from the 88 rated tire.


BTW – before someone thinks I’m picking on Michelin, Toyo also has a number of errors on their specs pages…

fast_daddy_car

2001 Manual page 301:
CLP - P205/60-R16 91V 32psi
CLS - P215/50-R17 93V 32psi
No mention that XL is needed!!!!!!!!


2001 Manual page 248:
once again no mention that XL rating is needed!!!!


2001 Sales Brochure page 29:
CLS - P215/50 R17 93V All-Season
No mention of XL rating!


2001 CLS Door Jamb Sticker:
P215/50-R17 93V 32psi
No mention of XL rating needed!!!




It looks like this XL rating requirement is a myth. Looks like just a coincidense that this particular size/model stock tire had an XL rating.


And you can push a CLP just as fast through curves as a CLS (it will just take longer to get to speed), and they have a 91 rating.

dmcconnell

I run them @34psi. The tread depth measurements that I reported were taken at the center of the tread. There is more tread on both sides compared to the center, but not much more. I must admit, I do drive a vehicle relatively hard, but not what I would call "very hard". After all, DRIVING IS FUN !!

EricL

Well, you are right about the manual – excellent “digging”.

AS of today, you could be absolutely right (as far as “meeting” the requirements of the manual). Back in late 2000 when I was looking to toss my OEM MXM XL tires, I got a different tune from Acura Care AND Tire Rack. (I called Acura Care, and now they content that any old 93 tire will do…)

AS for the, “looks like just a coincidense that this particular size/model stock tire had an XL rating,” I would say that we are both speculating. As far as following the manual, Acura Care now sings a different tune (yes, I called and now it’s ok to just pop a 93V on). Tire Rack has also gotten rid of their “XL or else” warnings…


There is still the issue of the Michelin page being wrong about that 90 rating and the 88 they “recommend” by adding a few pounds of air.

The gross weight limit of the Type S is: 4,365lbs (page 197 of the owner’s manual [yes, it is my hand as I write this]).

If I use 63/37 as the front-to-rear weight bias, I get the following front and rear loadings:

Front: 1375 lbs on each front tire (assuming the weight is equal from right-to-left [it isn’t])

The required load rating for 1375 lbs of weight is pretty close to the 1433lbs of a plain 93 rated tire. A non XL rated tire (or tire with reinforced casing), generally has its load rating spec’d at the max pressure.

So, a 92 load-rated tire just exceeds the 1375 figure by 1389-1375 = 13 lbs.

Now, go back to the Michelin link for the MXM4 and the stock P215/50R17 XL supports 1433lbs@35PSI. (There is also a tiny note, “For high-speed driving, additional inflation pressure and possibly reduced tire loading and/or upsizing is required.

When the load capacity is show at 100% of max, the pressure increase recommended for 149MPH is 7.5PSI (The tire is now over its maximum pressure rating, and IT’S an XL tire!!!!) WHAT DOES THIS SAY FOR A SL tire with a 91-rating (your comment about the CL's 91 load rating)?

So, now I run over to the Pilot A/S page and they rate the 225/50-17 with a 94 rating – this looks great (yes/no)?

But, I then see that the table clearly states: 1477LBS @ 51PSI and it has the following caveat about adjusting the pressure upwards for 100% loads above 118 MPH. And, once again, the “small print” says to add 7.5PSI for 149MPH. (I don’t see where the tire gets to be inflated to 57-58 PSI)

So, here is the question I have about “how good all of this data” is:

The Michelin people get the load rating all wrong: 90 vs. 93V (in the user’s guide) in their recommendations for an Acura CL Type S.

They tell some of the members that the tire DOES not need the max pressure for max load support (yet, it does not indicate that it has a reinforced casing; the 94 is a typical rating for a SL tire in a 225/50-17 size). (BTW, there is a simple way to solve this – have someone look at the sidewall of the tire. There should be a xxxxlbs@xxxPSI on the tire)

But… do look at the data I’ve presented and I wonder why the current tire “just” meets the car’s front load requirement when driven at full load and at top speed…

As I’ve mentioned in various posts in the past, there is nothing wrong with different solutions, provided that the person knows what they are getting into (driving with 4-people on a hot summer day for a top-speed run)…