I know this info reguarding the Goodyear Eagle F1 tires in cold weather has been posted before, but GM has just sent a reminder to it's dealers, so I thought it would be a good idea to add it to this thread.
The Camaro ZL1 and 1LE vehicles come standard equipped with 285/35ZR20 & 305/35ZR20 Goodyear F1 Supercar G2 D.O.T. approved ultra high performance summer tires with track capability.
Goodyear F1 Supercar Performance tires are a summer season tire and are not intended to be driven on snow, ice, or road surfaces below -7° C (20° F).
If the ambient temperature in your location is at or below -7° C (20° F), DO NOT MOVE THIS VEHICLE. The rubber used in these tires loses flexibility and may develop surface cracks in the tire tread/shoulder area at colder temperatures. Tire movement, when the temperature is below -7° C (20° F), may result in surface crack in the tread area of the tire. A surface crack on a tire is cosmetic and will not result in a loss of air
Example of a tire with a surface crack.
Special tread and compound used on these performance tires will cause a decrease in performance in cold climates, heavy rain, and standing water.
Driving on wet roads, in heavy rain, or through standing water with Summer Season Performance tires may result in hydroplaning and loss of vehicle control.
Driving with Summer Season Performance Tires on snow, ice, or cold road surfaces can cause loss of control or an accident
Refer to service bulletin 04-03-10-013G: Driving Characteristics of Rear Wheel Drive Vehicles and Available Winter Tires for further information on available winter tires.
It is recommended for these tires to be stored indoors at temperatures above 20 deg F (-7 deg C) when not in use. If the tires have been subject to 20 deg F (-7 deg C) or less, let them warm up in a heated space to at least 40 deg F for 24 hours or more before installation or driving the vehicle. Inflate the tires only after they have been warmed above 40 deg F (5 deg C). Do not place tires near heaters or heating devices used to warm the room where the tires are stored. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use after storage periods.