1998 Ford Windstar Owner Guide 1st Printing - Page 284

Maintenance and Care Ford Premium Cooling System Fluid is an optimized formula that will protect all metals and rubber elastomers used in Ford engines for four years or 50,000 miles (80,000 km). It is not necessary and not recommended to use supplemental coolant additives in your gasoline powered vehicle. These additives may harm your engine cooling system. Follow the recommended service interval for changing your engine coolant. NOTE: When adding to or changing your engine coolant, it is important to maintain a coolant concentration between 40% (Ҁ11˚F [Ҁ24˚C]) and 60% (Ҁ62˚F [Ҁ52˚C]) depending on your local climate conditions. When coolant concentration falls below 40%, you will lose freeze protection; above 60%, your engine may overheat on a warm day. If coolant concentration is outside this range, you may lose corrosion and rust protection for the metals in your engine cooling system. NOTE: Do not use an engine coolant that does not meet all 14 requirements of Ford specification ESE-M97B44-A. The use of a coolant that does not meet the 14 requirements may void your warranty for the engine cooling system. Use only a premium, nationally recognized brand name engine coolant. Ford Motor Company expressly authorizes the Ford Rotunda engine coolant recycling process and chemicals. Use only Ford Rotunda recycled engine coolant or an equivalent non-Ford Rotunda recycled engine coolant that is certified by the supplier to meet Ford specification ESE-M97B44-A. NOTE: Always dispose of used automotive fluids in a responsible manner. Follow your community's standards for disposing of these types of fluids. Call your local recycling center to find out about recycling automotive fluids. 285