2011 Nissan GT-R Owner's Manual - Page 228

engine coolant. Use an appropriate timer to turn the engine block heater on. 5. Before starting the engine, unplug and properly store the cord to keep it away from moving parts. Failure to use the proper extension cord or a grounded outlet can result in a fire or electrical shock and cause serious personal injury. WARNING . Do not use your engine block heater with an ungrounded electrical system or a 2-pronged adapter. You can be seriously injured by an electrical shock if you use an ungrounded connection. Disconnect and properly store the engine block heater cord before starting the engine. Damage to the cord could result in an electrical shock and can cause serious injury. Use a heavy-duty 3-wire, 3-pronged extension cord rated for at least 10A. Plug the extension cord into a Ground Fault Interrupt (GFI) protected, grounded 110-VAC outlet. . . 5-46 Starting and driving