Call me crazy, but...
I have A/S 3+ on order (early Jan delivery Tirerack.com) but I'm considering canceling and using summer tires all year. This is because I have a 4Runner with Mud/snow tires that I could use that for any snowy/ice conditions (or less than 40 deg), and drive the M3P (with pilot sport 4s) on days where temps won't be below 40° and there is no calling for snow/ice. My M3P is garaged and it never gets below 40 in my garage, usually at 50-55°.
My thinking comes after reading carefully over the Michelin warranty/owners manual. It warns against winter tire in summer use and how this use could limit or invalidate the warranty, but never even mentions warranty and/or safety issue about summer tire in winter. Maybe with other tire brands, use in low 40's (or even upper 30's) could damage the tire integrity, I don't think that's the case with these Michelin tires otherwise certainly it would be documented somewhere in the warranty/owners manual.
I know braking, traction will be less than optimal summer use, but still with AWD and traction control in an EV that I'd still be fairly safe.
From people who sell tires.... hmmmm. Despite the obvious performance drop and the headache of planning which car to drive on a day to day basis of the weather, Nothing I have read from Michelin website or owners manual says that they would be damaged by driving around all winter in 40ish degrees and storing in the garage at 50+degrees.
I have A/S 3+ on order (early Jan delivery Tirerack.com) but I'm considering canceling and using summer tires all year. This is because I have a 4Runner with Mud/snow tires that I could use that for any snowy/ice conditions (or less than 40 deg), and drive the M3P (with pilot sport 4s) on days where temps won't be below 40° and there is no calling for snow/ice. My M3P is garaged and it never gets below 40 in my garage, usually at 50-55°.
My thinking comes after reading carefully over the Michelin warranty/owners manual. It warns against winter tire in summer use and how this use could limit or invalidate the warranty, but never even mentions warranty and/or safety issue about summer tire in winter. Maybe with other tire brands, use in low 40's (or even upper 30's) could damage the tire integrity, I don't think that's the case with these Michelin tires otherwise certainly it would be documented somewhere in the warranty/owners manual.
I know braking, traction will be less than optimal summer use, but still with AWD and traction control in an EV that I'd still be fairly safe.
Here's the note from TireRack/Michelin on the Pilot Sport 4S
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.
From people who sell tires.... hmmmm. Despite the obvious performance drop and the headache of planning which car to drive on a day to day basis of the weather, Nothing I have read from Michelin website or owners manual says that they would be damaged by driving around all winter in 40ish degrees and storing in the garage at 50+degrees.