Ford F-650 2015 Owner's Manual page 123

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If any of these warnings appear, you must purge the contaminated DEF
and replace it with approved DEF. See an authorized dealer or the
Workshop Manual.
Upon filling the DEF tank after a DEF contaminated warning, normal
operation resumes when you restart your vehicle.
DEF Guidelines and Information
• DEF is non-flammable, non-toxic, colorless and water-soluble.
• Use only DEF that carries the trademark: AMERICAN PETROLEUM
INSTITUTE CERTIFIED DIESEL EXHAUST FLUID.
• An ammonia odor may be smelled when the cap is removed or during
a refill. Refill the DEF tank in a well-ventilated area.
• Before filling the tank, make sure the surrounding area is clean of
debris to prevent contamination.
• Do not dilute DEF with water or any other liquid.
• Do not put DEF in the fuel tank or any other tank on your vehicle.
• Do not re-use the nozzle or the DEF container once it is empty.
• Do not overfill the DEF tank.
• Avoid spilling DEF on painted surfaces, carpeting or plastic
components. Immediately wipe away any DEF that has spilled on
painted surfaces with a damp cloth and water. If it has already
crystallized, use warm water and a sponge.
• DEF freezes below 12°F (-11°C). Your vehicle is equipped with an
automatic pre-heating system which allows the DEF system to
operate below 12°F (-11°C).
• Do not store the DEF bottle in your vehicle. If it leaks, it could cause
damage to interior components or release an ammonia odor inside
your vehicle.
• Store DEF out of direct sunlight and in temperatures between
23°F–68°F (-5°C–20°C).
2015 F-650/750 (f67)
Owners Guide gf, 2nd Printing, April 2014
USA (fus)
Fuel and Refueling