Selective Catalytic Reduction System Precautions; What Is The Selective Catalytic Reduction System; How Does The Selective Catalytic Reduction System Work - Ford SUPER DUTY 2023 Owner's Manual

Selective Catalytic Reduction System
WHAT IS THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM
The selective catalytic reduction system
helps reduce tailpipe emissions and
requires Diesel Exhaust Fluid (DEF) to
convert nitrogen oxides into nitrogen and
water.
HOW DOES THE SELECTIVE
CATALYTIC REDUCTION
SYSTEM WORK
The selective catalytic reduction system
injects diesel exhaust fluid into the exhaust
system to enable correct selective catalytic
reduction system function.
The usage of diesel exhaust fluid has
increased from prior model years in order
to meet more stringent emissions
requirements. The diesel exhaust fluid
usage ranges from approximately 2-6%
of fuel burned (100.00 gal (378.54 L) of
fuel requires approximately 2.00 gal
(7.57 L)to 6.00 gal (22.71 L) of diesel
exhaust fluid) depending on vehicle usage.
Factors that influence diesel exhaust fluid
usage may include:
• Payload/Towing
• Driving Style
• Altitude
• Humidity
• Temperature
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOM
SELECTIVE CATALYTIC
REDUCTION SYSTEM
PRECAUTIONS
WARNING: Keep diesel exhaust
fluid out of reach of children. Avoid
contact with skin, eyes or clothing. In
case of contact with your eyes, flush
immediately with water and get prompt
medical attention. In case of contact
with your skin, clean immediately with
soap and water. If you swallow any
diesel exhaust fluid, drink plenty of
water, call a physician immediately.
WARNING: Only refill the diesel
exhaust fluid tank in a well ventilated
area. When you remove the diesel
exhaust fluid tank filler cap or a diesel
exhaust fluid container cap, ammonia
vapors may escape. Ammonia vapors
can be irritating to skin, eyes and mucous
membranes. Inhaling ammonia vapors
can cause burning to the eyes, throat and
nose and cause coughing and watery
eyes.
WARNING: Diesel exhaust fluid
must be refilled when low or replaced
when contaminated or your vehicle
speed becomes limited to 50 mph
(80 km/h). In these conditions, drive with
caution and refill diesel exhaust fluid
immediately. If the diesel exhaust fluid
becomes empty or contaminated and
fluid is not replaced, your vehicle
becomes limited to engine idle only once
stopped. In these conditions, be cautious
where you stop your vehicle because you
may not be able to drive long distances
or maintain highway speeds until you
refill or replace the diesel exhaust fluid.
226
(If Equipped)