1997 Lincoln Mark VIII Owner's Manual - Page 236

concentration in your vehicle is such that the coolant will not freeze at the temperature level in which you drive during winter months. Never increase the engine coolant concentration above 60%. Leave a 50/50 mixture of engine coolant and water in your vehicle year-round in non-extreme climates. Proper procedures for a complete coolant drain and flush of the cooling system can be found in the Car Service Manual. Following these recommended procedures will ensure that the specified coolant level and a 50/50 or appropriate mixture of coolant and water is maintained. u Remove coolant reservoir pressure cap. u Remove the engine coolant outlet tube fill plug on the engine. u With the engine off and cool, add a 50/50 mixture of recommended cooling system fluid and water to the coolant outlet tube fill neck until the reservoir is full. NOTE: DO NOT FILL COOLANT SYSTEM THROUGH COOLANT RESERVOIR. COOLANT WILL NOT ENTER ENGINE, WHICH CAN LEAD TO ENGINE DAMAGE. NOTE: Avoid spilling coolant on the front end accessory drive belt, as this will allow the belt to slip and become noisy. Engine Coolant Refill Procedure When the entire cooling system is drained and refilled, the following procedure should be used to ensure a complete fill: NOTE: It is imperative the following procedure be adhered to. Failure to do so could result in damage to your engine. u Reinstall the pressure cap to the coolant reservoir. u Continue filling at the engine coolant tube fill neck slowly while allowing air to escape. 231