1997 Mercury Mountaineer Owner's Manual - Page 146
1997 Mercury Mountaineer Manual
Page 146 highlights
Maintenance and care or 80,000 km (50,000 miles). 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. When you change or add engine coolant, it is important to maintain your engine coolant concentration between 40% (-24°C [11°F]) and 60% (-52°C [-62°F]), depending on your local climate conditions. A coolant concentration below 40% may cause the engine to overheat on a warm day. Do not use engine coolant that does not meet all 14 requirements of Ford Specification ESE-M97B44-A. The use of an improper coolant may void your warranty for the engine cooling system. Use only a premium nationally-recognized brand name engine coolant. 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 more about recycling automotive fluids. Adding engine coolant Never remove the coolant recovery cap while the engine is running or hot. 146