2018-F150-Owner's Manual

Engine Emission Control

Typical Diesel Exhaust Fluid Usage WhenUsing thePower TakeOff (PTO) Continuous PTO use—Minimal PTO use 0–7,800 mi (0–12,550 km) Contaminated Diesel Exhaust Fluid or Inoperative Selective Catalytic Reduction System Selective catalytic reduction systems are sensitive to contamination of the diesel exhaust fluid. Maintaining the purity of the fluid is important to avoid system malfunctions. If you remove or drain the diesel exhaust fluid tank, do not use the same fluid to refill the tank. The system has a sensor to monitor fluid quality. A warning lamp illuminates and a message appears in the information display if the system becomes contaminated or inoperative. Continued driving without replacing diesel exhaust fluid or having the selective catalytic reduction systemrepaired results in the following actions as required by the CaliforniaAir Resources Board (CARB) and U.S. Environmental Protection Agency (EPA): • Within a preset distance to empty, speed is limited upon vehicle restart. Prior to this occurring a message appears in the information display. • Further vehicle operation without replacing contaminateddiesel exhaust fluid causes the engine to enter an idle-only condition. This only occurs upon vehicle refueling, vehicle idling in park for 1 hour, or engine shutdown for 10 minutes or more and is indicated by a message in the information display indicating required actions to resume normal operation. E163176

Note: For vehicle speed limiting or idle-only condition, normal vehicle operation resumes when you repair the contaminated system. To service a contaminated or inoperative system, see an authorized dealer. DIESEL PARTICULATE FILTER The filter forms part of the emissions reduction system on your vehicle. It filters harmful diesel particulates (soot) fromthe exhaust gas. Regeneration WARNING Do not park or idle your vehicle over regeneration process creates very high exhaust gas temperatures and the exhaust will radiate a considerable amount of heat during and after regeneration and after you have switched the engine off. This is a potential fire hazard. Note: Avoid running out of fuel. Note: During regeneration at low speed or engine idle, you may smell a hot metallic odor and could notice a clicking metallic sound. This is due to high temperatures reached during regeneration and is normal. Note: Changes in the engine or exhaust soundmay be heard during the regeneration process. The diesel particulate filter on your vehicle requires periodic regeneration to maintain its correct function. Your vehicle will carry out this process automatically. dry leaves, dry grass or other combustible materials. The

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F-150(TFC)Canada/UnitedStatesofAmerica,enUSA,Editiondate:201709,SecondPrinting