Michelin PS4S Question
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Instructor
Joined: Jan 2018
Posts: 197
Likes: 55
From: LA (lower Alabama)
Michelin PS4S Question
Still shopping for new tires. Considering Michelin PS4S versus Hankook versus Continental. I don't really drive the car in super cold weather. Actually, in Alabama we don't have super cold weather. But I just spotted this disclaimer on the PS4S:
"Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels or using them to support, roll or drive a vehicle. Flexing of the specialized rubber compounds used in Max Performance Summer tires during cold-weather use can result in irreversible compound cracking. Compound cracking is not a warrantable condition because it occurs as the result of improper use or storage, tires exhibiting compound cracking must be replaced."
Does this mean if I am storing my car in the winter where the temp might get lower than 20F, that I should jack the car up off the tires? Is this a Michelin thing or does it apply to all "Summer Tires?" Our winters rarely ever get as low as 20F, and the car stays indoors, where I can control the temp, but I've just never seen this kind of warning disclaimer on a tire. I do drive it in good weather in the winter, but it probably never sees below 40F. The warning really doesn't apply to me, in my opinion, due to my storage ability and general Alabama climate, but I am curious about the warning.
"Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels or using them to support, roll or drive a vehicle. Flexing of the specialized rubber compounds used in Max Performance Summer tires during cold-weather use can result in irreversible compound cracking. Compound cracking is not a warrantable condition because it occurs as the result of improper use or storage, tires exhibiting compound cracking must be replaced."
Does this mean if I am storing my car in the winter where the temp might get lower than 20F, that I should jack the car up off the tires? Is this a Michelin thing or does it apply to all "Summer Tires?" Our winters rarely ever get as low as 20F, and the car stays indoors, where I can control the temp, but I've just never seen this kind of warning disclaimer on a tire. I do drive it in good weather in the winter, but it probably never sees below 40F. The warning really doesn't apply to me, in my opinion, due to my storage ability and general Alabama climate, but I am curious about the warning.
Burning Brakes
Joined: Nov 2018
Posts: 980
Likes: 118
It doesn't mean that. It means you shouldn't mount or dismount them or change the pressure drastically at those temperatures. If they're just sitting there in the garage, mounted or not, they'll be perfectly fine.
With that said, it's better for any tire to be stored unloaded for lengthy periods of time. You can mitigate this in your garage by keeping the car parked on plywood or some other non concrete substrate, and inflating the tires to max pressure to lessen the degree to which they may flatten.
With that said, it's better for any tire to be stored unloaded for lengthy periods of time. You can mitigate this in your garage by keeping the car parked on plywood or some other non concrete substrate, and inflating the tires to max pressure to lessen the degree to which they may flatten.
Last edited by Jackie N; Apr 19, 2019 at 01:47 PM.
