Big problem with Michelin Pilot A/S Plus

[geneswede]

DRS:

That's similar to my experiences on other cars. I've always found that running higher PSI then car manufacturers recommendation has improved the ride/MPG/handling on both dry and wet conditions (not so much on snow).

These tires are GRIPPY for sure and I think they are brand new (I previously through they has some mileage on them) and they seem to be changing behavior as I drive them more (Still has <300 miles on my new car).

I will drive a few more days (at 40psi) and see what happens.

 

[Jbo]

I mistaken put 35 lbs in all four, semi warm...all four read 30# post a 45 degree night and then ran I86/86 for 2 hours. Checked tires as I could feel every tar strip in road..pressure was 38/39 all four wheels. Took them down to 35 hot and got the ride back and slight handling improvement. Much more than 35 and the ride is just plain HARSH.

 

[DRS]

Genesweed

Agreed. My experience with the Genny and most all vehicles owned is the same as yours with higher pressures.

Even on vans, minivans, SUV,pickup trucks, where lots of people gear and towed equipment, raising TP up over the door jam "recommended" pressures is better. As noted on the tires, the max weight rating is at the max cold inflation pressure. Running TP below that also lowers the max weight per tire. So, when hauling extra weight that could max out tires max rating (front or more likely rear)... When we haul large loaded horse trailers, TP on the truck need to be as high as 80lbs+. Trailers up to 90+ depending on tires. You run less than max cold temp TP in this situation, and they will have blow outs. This is all trivia, I admit. Some folks do not think of TP when what they are traveling in are fully loaded.

 

[geneswede]

I've had about 500 miles on the tires and I think they are breaking in. They now rarely pull to the side and when they do it can be left or right (more often right). They re still relatively noisy and really grippy (probably a good thing) and they like to continue in the direction you point them at (probably a good thing).

They are stickier and any other tires I have used (though I tend to go with low rolling resistant type tire) and when they are tracking straight you sometime have to use slightly more power (initially) to make them start turning but then they turn with a grip that impresses.

I have not pushed these tires and I've still cornered this car fairly aggressive on on/off ramps, to the point that I was impressed that I had 0 tire squeal and car felt really well planted and in control.

Have driven them once during slight rain and the grip stayed exactly the same (though I didn't push the car at that time).

If you are looking for a set of performance type tires these should probably go on your list. My only complaint is that they are louder then the tires on the 3.6 that I test drove. Quietness is important to me so I will probably not buy these tires again.

I keep them at 40 psi as per discussion above. I like the road feel with the PSI.

 

[homeofstone]

Michelin Pilot Sport A/S plus will be going away. Per MotorTrend "The Pilot Sport A/S 3, which replaces the Pilot Sport A/S Plus, sports a number of new key features. Most notable is its asymmetric"

Read more: http://wot.motortrend.com/michelin-pilot-sport-as-3-tire-test-307753.html#ixzz2cAGVq7CK
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[shagnat]

I mistaken put 35 lbs in all four, semi warm...all four read 30# post a 45 degree night and then ran I86/86 for 2 hours. Checked tires as I could feel every tar strip in road..pressure was 38/39 all four wheels. Took them down to 35 hot and got the ride back and slight handling improvement. Much more than 35 and the ride is just plain HARSH.

You are dead on. Running tires for this car at 40+ PSI is plumb stupid and dangerous IMHO (as well as car and tire manufacturers). Don't know why some peeps thing running tires at ~10+ lbs above recommendations is smart. I think it's plumb stupid and asking for trouble. I'm sure I'll get blasted for this, but, I still agree with the above poster. Flame away, I can take it.

 

[homeofstone]

You are dead on. Running tires for this car at 40+ PSI is plumb stupid and dangerous IMHO (as well as car and tire manufacturers). Don't know why some peeps thing running tires at ~10+ lbs above recommendations is smart. I think it's plumb stupid and asking for trouble. I'm sure I'll get blasted for this, but, I still agree with the above poster. Flame away, I can take it.

^ I agree unless you going to be driving at 150+mph then increase the cold tire pressure to reduce heat build up of tire.

 

[DRS]

It is not "dumb". The only flaming is the "dumb" comment.

As described above, there are advantages of higher TP than spec in many vehicles. And that includes the Gennys.

 

[homeofstone]

And the pulling continues. Info from the Lexus forum. Hi all. I just bought a brand new set of A/S Plus on Friday, and I have the dreaded pull. I've done some searching and I see that this has been a fairly common issue with the A/S Plus, although it's been quite some time since the topic has been discussed

Read more: http://www.clublexus.com/forums/the...ort-a-s-plus-pulling-issue.html#ixzz2lu7SyMD7