1997 Nissan Pathfinder Owner's Manual - Page 167

ENGINE COOLING SYSTEM The engine cooling system is filled at the factory with a high-quality, year-round, antifreeze coolant solution. The anti-freeze solution contains rust and corrosion inhibitors, therefore additional cooling system additives are not necessary. When adding or replacing the coolant, be sure to use an ethylene glycol antifreeze with the proper mixture ratio of 50% anti freeze and 50% distilled water. The use of other types of coolant solutions may damage your engine cooling system. Outside temperature down to °C −35 °F −30 50% 50% Antifreeze Distilled water ¼ Never remove the radiator cap when the engine is hot; serious burns could be caused by high pressure fluid escaping from the radiator. Wait until the engine and radiator cool down. Serious burns could be caused by high pressure fluid escaping from the radiator. See precautions in "If your vehicle overheats" found in the "In case of emergency" section. ¼ The radiator is equipped with a pressure cap. Use a NISSAN genuine cap or its equivalent when replacement is required. SDI0378 CHECKING COOLANT LEVEL With coolant reservoir Check the coolant level in the reservoir tank when the engine is cold. If the coolant level is below the "MIN" level, add coolant to the "MAX" level. If the reservoir tank is empty, check the coolant level in the radiator when the engine is cold. If there is insufficient coolant in the radiator, fill the radiator with coolant up to the filler opening and also add it to the reservoir tank up to the "MAX" level. 7-4