2001 Ford Mustang Owner Guide 3rd Printing - Page 157

Maintenance and care WINDSHIELD WASHER FLUID Washer fluid Check the washer fluid whenever you stop for fuel. The reservoir is highlighted with a symbol. If the level is low, add enough fluid to fill the reservoir. In very cold weather, do not fill the reservoir all the way. Only use a washer fluid that meets Ford specification . Refer to Lubricant specifications in the Capacities and specifications chapter. State or local regulations on volatile organic compounds may restrict the use of methanol, a common windshield washer antifreeze additive. Washer fluids containing non-methanol antifreeze agents should be used only if they provide cold weather protection without damaging the vehicle's paint finish, wiper blades or washer system. Do not put washer fluid in the engine coolant reservoir. Washer fluid placed in the cooling system may harm engine and cooling system components. ENGINE COOLANT Checking engine coolant The concentration and level of engine coolant should be checked at the mileage intervals in the scheduled maintenance guide. The coolant concentration should be maintained at 50/50 coolant and water, which equates to a freeze point of -36° C (-34° F). Coolant concentration testing is possible with a hydrometer or antifreeze tester (such as the Rotunda Battery and Antifreeze Tester, 014-R1060). 157