2011 Nissan GT-R Owner's Manual - Page 227

of summer tires is substantially reduced when temperatures are less than 328F (08C) so you must drive carefully. NISSAN recommends the use of winter or all-season tires on all four wheels if you plan to operate your vehicle in snowy or icy conditions when temperatures are less than 328F (08C). ... A sturdy, flat board to be placed under the jack to give it firm support. A shovel to dig the vehicle out of snowdrifts. Extra window washer fluid to refill the reservoir tank... These may appear on an otherwise clear road in shaded areas. If a patch of ice is seen ahead, brake before reaching it. Try not to brake while on the ice, and avoid any sudden steering maneuvers. Do not use the cruise control on slippery roads. Snow can trap dangerous exhaust gases under your vehicle. Keep snow clear of the exhaust pipe and from around your vehicle. DRIVING ON SNOW OR ICE WARNING Never use summer tires when the temperature is below −48F (−208C) to prevent permanent tread deformation which may cause tire damage or tire failure. This may cause a loss of vehicle control which can result in serious personal injury or death. Tire chains may be used. ( page 8-35) "TIRE CHAINS" . WARNING Wet ice (328F, 08C and freezing rain), very cold snow or ice can be slick and very hard to drive on. The vehicle will have much less traction or "grip" under these conditions. Try to avoid driving on wet ice until the road is salted or sanded. Whatever the condition, drive with caution. Accelerate and slow down with care. If accelerating or downshifting too fast, the drive wheels will lose even more traction. Allow more stopping distance under these conditions. Braking should be started sooner than on dry pavement. Allow greater following distances on slippery roads. Watch for slippery spots (glare ice). ENGINE BLOCK HEATER (if so equipped) The engine block heater should be used when the outside temperature is 208F (−78C) or lower. . To use the engine block heater 1. Turn the engine off. 2. Plug the engine block heater cord into a grounded 3-wire, 3-pronged extension cord. 3. Plug the extension cord into a Ground Fault Interrupt (GFI) protected, grounded 110volt AC (VAC) outlet. 4. The engine block heater must be plugged in for at least 2 - 4 hours, depending on outside temperatures, to properly warm the Starting and driving 5-45 If you install tires, they must also be the specified size, brand, construction and tread pattern on all four wheels. SPECIAL WINTER EQUIPMENT It is recommended that the following items be carried in the vehicle during winter: . A scraper and stiff-bristled brush to remove ice and snow from the windows and wiper blades. . . .