Michelin PS2 A/S ZP Plus
Thread Starter
Racer
Joined: Dec 2002
Posts: 402
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From: Goose Creek SC
Michelin PS2 A/S ZP Plus
They were delivered Thursday from Tire Rack, and I had them installed Friday. They replaced the OEM EMT tires. I am usually skeptical when folks write "what a difference", but now I am a believer. Bump steer: gone. Howl: gone. Jarring over each road imperfection: gone. It really is a changed car. Granted, the old tires were almost 8 years old, but I believe this car has never ridden better than it rides now. I just regret I did not make the change years ago.
I have only good things to say about these Michelins. But not so with Goodyear. They must have sold a million of these F1 GS EMT tires on new C5's, but then abandoned the C5. All Goodyear makes for the C5 is the 15 year old EMT, and an uninpsired all season tire. After all the money they made on the C5, it would have been nice if they could have continued to make a competitive tire for the car.
Tread Quarters did the installation, and did a good job. I changed out the TPMS (also ordered from Tire Rack), and Tread Quarters took care of training them.
This new rubber has put new life in the Vette.
I have only good things to say about these Michelins. But not so with Goodyear. They must have sold a million of these F1 GS EMT tires on new C5's, but then abandoned the C5. All Goodyear makes for the C5 is the 15 year old EMT, and an uninpsired all season tire. After all the money they made on the C5, it would have been nice if they could have continued to make a competitive tire for the car.
Tread Quarters did the installation, and did a good job. I changed out the TPMS (also ordered from Tire Rack), and Tread Quarters took care of training them.
This new rubber has put new life in the Vette.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Mine are coming up for replacement. I fitted them at 21k and I now have about 42k so they've worn well too.I guess it makes sense. The OEMs had very stiff sidewalls so they could run flat for 200 miles. The Michelins are softer so they ride better. The compromise is that they are only rated for 50 miles flat.
Glad you like them.
Thread Starter
Racer
Joined: Dec 2002
Posts: 402
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From: Goose Creek SC
My thought on the run flats is that they give you the chance to get the car a couple of miles to a place where you can safely deal with the puncture - in most cases, plug it. So, the 50 miles vs. 200 miles is not a concern. Thanks for the comment.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
Reading the owners manual, the wording is very careful on the rules for the run flat tires. It says, you can run the tire for up to 50 miles at 55 mph and still repair the tire. This is the only part other manufacturers of run flats tires say, Chevy goes on to say about the run flat tire that you can go up to 200 miles at 55 mph but you will have to replace the tire.
In Section 5 it says:
If your vehicle has Extended Mobility Tires (EMT), you won’t need to stop on the side of the road to change a flat tire. EMT tires can operate effectively with no air pressure. If you drive on a deflated EMT for 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired.
Then in Section 6 it goes on to say:
If a tire goes flat, you won’t need to stop on the side of the road to change the tire. You can just keep on driving. The shorter the distance you drive and the slower the speed, the greater the chance that the tire will not have to be replaced. If you drive on a deflated EMT for 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired. The tire can operate effectively with no air pressure for up to 200 miles (320 km) at speeds up to 55 mph (90 km/h), but the tire would then have to be replaced. When a tire is filled with air, it provides a cushion between the road and the wheel. Because you won’t have this cushion when driving on a deflated tire, try to avoid potholes that could damage your wheel and require replacement of it.
So any of them keeping it below 50 miles and under 55 mph, in most cases the tire can still be repaired. Yes granted the type of damage, obvious damage to the wrong part of the tire or a literal hole cannot be repaired.
On the "Plus" models you have a 500 wear rating which Michelin claims will be 50,000 miles. To tell you the truth my first set was before the plus model was introduced, that first set wore out around 23K, I have probably that now on this Plus model set and they hardly look worn. This set is coming up on 2 years old and you can expect that kind of wear out of these Plus models.
After 2 sets of the A/S models I'm going to go with the PS2 ZPs next. I want that wider stance back on the rear and we don't get that cold down here in FL.
In Section 5 it says:
If your vehicle has Extended Mobility Tires (EMT), you won’t need to stop on the side of the road to change a flat tire. EMT tires can operate effectively with no air pressure. If you drive on a deflated EMT for 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired.
Then in Section 6 it goes on to say:
If a tire goes flat, you won’t need to stop on the side of the road to change the tire. You can just keep on driving. The shorter the distance you drive and the slower the speed, the greater the chance that the tire will not have to be replaced. If you drive on a deflated EMT for 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired. The tire can operate effectively with no air pressure for up to 200 miles (320 km) at speeds up to 55 mph (90 km/h), but the tire would then have to be replaced. When a tire is filled with air, it provides a cushion between the road and the wheel. Because you won’t have this cushion when driving on a deflated tire, try to avoid potholes that could damage your wheel and require replacement of it.
So any of them keeping it below 50 miles and under 55 mph, in most cases the tire can still be repaired. Yes granted the type of damage, obvious damage to the wrong part of the tire or a literal hole cannot be repaired.
On the "Plus" models you have a 500 wear rating which Michelin claims will be 50,000 miles. To tell you the truth my first set was before the plus model was introduced, that first set wore out around 23K, I have probably that now on this Plus model set and they hardly look worn. This set is coming up on 2 years old and you can expect that kind of wear out of these Plus models.
After 2 sets of the A/S models I'm going to go with the PS2 ZPs next. I want that wider stance back on the rear and we don't get that cold down here in FL.
Last edited by Jet-Jock; Aug 1, 2010 at 10:06 AM.
Thread Starter
Racer
Joined: Dec 2002
Posts: 402
Likes: 0
From: Goose Creek SC
Thanks for the replies. The OEM tires were "exciting" in the rain. I am looking forward to a more predicatble wet ride in these new tires.
Regarding these being one of the last few sets of OEM tires, I do a lot of work overseas, which keeps the Vette idle more than I like.
Regarding these being one of the last few sets of OEM tires, I do a lot of work overseas, which keeps the Vette idle more than I like.
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Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
The 200 mile figure was often quoted in the early years but as Jet Jock says the manual does indeed quote 50 miles for repair purposes. Having driven both, I can say without doubt that the Michelins are way softer and give a better ride and have more give.
All Corvettes are Red quotes "100 miles or more" and quotes an example where an engineer put 200 miles on a tire, had it plugged and then ran it for a further 20,000 miles. Now thats stiff!!!!! I also heard from some of the Forum experts that the later tires (03 on IIRC) were not as stiff and were indeed only rated for 50 miles.
One of those myths I guess unless E-T can answer it for us.
All Corvettes are Red quotes "100 miles or more" and quotes an example where an engineer put 200 miles on a tire, had it plugged and then ran it for a further 20,000 miles. Now thats stiff!!!!! I also heard from some of the Forum experts that the later tires (03 on IIRC) were not as stiff and were indeed only rated for 50 miles.
One of those myths I guess unless E-T can answer it for us.
Last edited by DeeGee; Aug 1, 2010 at 03:35 PM.
Drifting
Joined: Feb 2009
Posts: 1,379
Likes: 1
From: MA
I've had the Michelin PS A/S ZP+ for about 4,000 miles now and they are incredible.
I've been pushing the tires in both the rain and in every corner/on-offramp and rotary I can find and they stick.
Quiet, smooth and grip all I can handle.
I went through 2 new rear sets of Falken FK452's every 10,000 miles and I expect the MIchelin's to last a lot longer. I've been daily driving the crap out of my car.
I've been pushing the tires in both the rain and in every corner/on-offramp and rotary I can find and they stick.
Quiet, smooth and grip all I can handle.
I went through 2 new rear sets of Falken FK452's every 10,000 miles and I expect the MIchelin's to last a lot longer. I've been daily driving the crap out of my car.
Safety Car
Joined: Aug 2004
Posts: 4,908
Likes: 735
From: Southwest Kansas
2022 Corvette of the Year Finalist -- Unmodified
2021 C6 of the Year Winner - Unmodified
Well, don't take a tire to Firestone...they won't fix it all. In June, I picked up a nail in the rear tire ( Michelin PS2 AS plus ZP). Tire never went completely flat 16lbs. Pulled into a Firestone place and they said I had to replace the tire (I had driven no more than 4 miles). They said the tire was ruined. Went to a Michelin dealer and they repaired it........
Never deal with Firestone! All they want to do is take your money.
Never deal with Firestone! All they want to do is take your money.
