2013 Ford F150 Super Cab Owner Manual Printing 3 - Page 339

338 Maintenance Replace wiper blades at least once per year for optimum performance. Poor wiper quality can be improved by cleaning the wiper blades and the windshield. Refer to Cleaning the windows and wiper blades in the Vehicle Care chapter. To prolong the life of the wiper blades, it is highly recommended to scrape off the ice on the windshield before turning on the wipers. The layer of ice has many sharp edges and can damage the micro edge of the wiper rubber element. AIR FILTER CHECK WARNING: To reduce the risk of vehicle damage and/or personal burn injuries, do not start your engine with the air cleaner removed and do not remove it while the engine is running. When changing the air filter element, use only the air filter element listed. Refer to Motorcraft® Part Numbers in the Capacities and Specifications chapter. For EcoBoostequipped vehicles: When servicing the air cleaner, it is important that no foreign material enter the air induction system. The engine and turbocharger are susceptible to damage from even small particles. Refer to Scheduled Maintenance for the appropriate intervals for changing the air filter element. Note: Failure to use the correct air filter element may result in severe engine damage. The customer warranty may be void for any damage to the engine if the correct air filter element is not used. 2013 F-150 (f12) Owners Guide gf, 3rd Printing, February 2013 USA (fus)