2010 Nissan GT-R Owner's Manual - Page 22

REPLENISHING COOLANT The information and specifications in this section apply only when engaging in performance driving. Check the coolant level in the pressurized coolant reservoir. Adjust the level so that the fluid is between the MAX and MIN markings. For the coolant, use genuine NISSAN Long Life coolant. (On delivery of new vehicle, the reservoir is filled to the MIN level. Be sure to replenish approximately 0.3 to 0.4 US quart (0.3 to 0.4 liter) of coolant.) 50% antifreeze and 50% demineralized or distilled water mix is used. NOTICE At the completion of performance driving, all fluid and other adjustments should be returned to the normal fluid specifications as shown in the "Maintenance and do-it-yourself" section of this manual. COOL DOWN The information and specifications in this section apply only when engaging in performance driving. Cool down the vehicle to help extend the life of the vehicle if coolant temperatures are extremely high. Drive the vehicle at 37 to 50 MPH (60 to 80 km/h), in 5th or 6th gear for 2 to 3 miles (3 to 5 km) and then stop the engine. NOTICE Do not overfill the coolant. This may increase the pressure in the cooling system and cause coolant leaks. BRAKE PAD The information and specifications in this section apply only when engaging in performance driving. NISSAN recommends adding an additional cross spring to the front calipers before engaging in performance driving. The additional spring reduces brake pad movement resulting from cornering forces and will reduce the stroke of the brake pedal. Contact a GT-R certified NISSAN dealer to purchase the spring and arrange installation. COOLANT MIXTURE RATIO The information and specifications in this section apply only when engaging in performance driving. To maximize vehicle performance, the coolant mixture ratio should be a combination of 30% antifreeze and 70% demineralized or distilled water for maximum cooling system performance regardless of ambient temperatures. If ambient temperatures are anticipated below 58F (−158C), make sure a proper mixture ratio of Break-in procedure NISSAN recommends that a special brake pad break in procedure be performed before engaging in performance driving. Contact a GT-R certified NISSAN dealer for details. GTR-14 GT-R Overview