2000 Ford Ranger Owner's Manual - Page 169

Maintenance and care A 50/50 mixture of distilled water and Ford Premium Engine Coolant provides: • maximum cooling system efficiency. • freeze protection down to -36° C (-34° F). • boiling protection up to 129° C (265° F). • protection against rust and other forms of corrosion. • an accurate temperature readout from the engine coolant gauge. The engine coolant must be maintained at the correct fluid level and concentration to work properly. If the engine coolant fluid level and concentration is not maintained correctly, damage to the engine and cooling system may result. When the engine is cold, check the level of the engine coolant in the reservoir. RADIATOR COOLANT ONLY • The engine coolant should be at the "cold fill level" or within the "cold fill range" as listed on the engine coolant reservoir (depending upon application). • Refer to the Scheduled Maintenance Guide for service interval schedules. • Be sure to read and understand Precautions when servicing your vehicle in this chapter. If the engine coolant has not been checked at the recommended interval, the engine coolant reservoir may become low or empty. If the reservoir is low or empty, add engine coolant to the reservoir. Refer to Adding engine coolant in this chapter. 169