2006 Suzuki Reno Owner's Manual - Page 191

SERVICE AND APPEARANCE CARE CAUTION In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture. WARNING You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. 1) Park the vehicle on a level surface. You can remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise (left) about two or two and one-half turns. If you hear a hiss, wait for that to stop. This will allow any pressure still left to be vented out the discharge hose. 2) Then keep turning the pressure cap slowly, and remove it. WARNING Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle's coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you wouldn't get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 60/ 40 mixture of clean, drinkable water and a proper coolant. 3) Fill the coolant surge tank with the proper mixture to the MAX mark on the coolant surge tank. Wait about five minutes, then check to see if the level is below the MAX mark. If the level is below the MAX mark, add additional coolant to bring the level up to the MAX mark. Repeat this procedure until the level remains constant at the MAX mark for at least five minutes. 4) With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan. By this time, the coolant level inside the coolant surge tank may be lower. If the 5-16