1999 Ford Mustang Owner Guide 1st Printing - Page 163

Maintenance and care "Premium" unleaded gasoline is not recommended (particularly in the United States) because it may cause these problems to become more pronounced. If the problems persist, see your dealer or a qualified service technician. It should not be necessary to add any aftermarket products to your fuel tank if you continue to use a high quality fuel. Cleaner air Ford approves the use of gasolines to improve air quality, including reformulated gasolines that contain oxygenates up to 10% ethanol or 15% MTBE. Running out of fuel Avoid running out fuel because this situation may have an adverse affect on powertrain components. If you have run out of fuel: • You may need to crank the engine several times after refueling before the system starts to pump the fuel from the tank to the engine. • Your "Service Engine Soon" indicator may come on. For more information on the "Service Engine Soon" indicator, refer to the Instrumentation chapter. Fuel Filter For fuel filter replacement, see your dealer or a qualified service technician. Refer to the Scheduled Maintenance Guide for the appropriate intervals for changing the fuel filter. Replace the fuel filter with an authorized Motorcraft part. The customer warranty may be void for any damage to the fuel system if an authorized Motorcraft fuel filter is not used. 163