1999 Ford F150 Owner Guide 1st Printing - Page 177

Maintenance and care ENGINE COOLANT Check the level of the engine coolant in the reservoir. Refer to the Scheduled Maintenance Guide for service interval schedules. Be sure to read and understand Precautions when servicing your vehicle in this chapter. COLD FILL RANGE If the engine coolant has not been checked at the recommended interval, the engine coolant reservoir may become empty. If this occurs, add engine coolant to the reservoir. For more information on engine coolant maintenance, refer to Adding engine coolant in this chapter. Automotive fluids are not interchangeable; do not use engine coolant, antifreeze or windshield washer fluid outside of its specified function and vehicle location. Adding engine coolant Do not put engine coolant in the reservoir for the windshield washer fluid. Do not mix conventional green coolant, orange coolant or recycled coolants together in your vehicle. Use only the type of coolant with which your vehicle was originally equipped. If you are unsure which type of coolant your vehicle requires, contact your local dealer. If sprayed on the windshield, engine coolant could make it difficult to see through the windshield. When the engine is cool, add a 50/50 mixture of engine coolant and water to the engine coolant reservoir. Add straight water only in an 177