FORD 2013 F-150 v.2 - Manual (Page 334)

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.
Maintenance 333
2013 F-150 (f12)
Owners Guide gf, 2nd Printing, October 2012
USA (fus)