Typical Diesel Exhaust Fluid (Def) Usage; Pick-Up (3.31 Axle Ratio); Pick-Up (3.55 Axle Ratio) - Ford Diesel 2011 Supplement Manual

Maintenance and Specifications
• Store DEF out of direct sunlight and in temperatures between 23°F
(-5°C) — 68°F (20°C).
• DEF will freeze below 12°F (-11°C).
• Do not store DEF bottle in vehicle. If it leaks it could cause damage to
interior components or release an ammonia odor inside the vehicle.
• DEF is non-flammable, non-toxic, colorless and water-soluble liquid.
• Do not dilute DEF with water or any other liquid.
• An ammonia odor may be smelled when the cap is removed or during
refill. Refill DEF in a well ventilated area.

Typical Diesel Exhaust Fluid (DEF) Usage

The charts below illustrate approximate DEF usage for the given
distances traveled under various driving conditions and when using the
PTO. Your usage may vary depending on: driving style, trailer towing,
loaded vehicle weight, weather, idle time, PTO usage, etc.
Trailer towing /
Driving
aggressive or city
style
driving
4100 miles
DEF (6598 km) –
usage 7100 miles
(11426 km)
Trailer towing /
Driving
aggressive or city
style
driving
2800 miles
DEF (4506 km) –
usage 5800 miles
(9334 km)
36
2011 Diesel (eco)
Supplement, 5th Printing
USA (fus)

Pick-up (3.31 axle ratio)

Normal driving
7100 miles
(11426 km) –
9600 miles
(15450 km)

Pick-up (3.55 axle ratio)

Normal driving
5800 miles
(9334 km) –
8100 miles
(13036 km)
Steady highway
driving
9600 miles
(15450 km) –
10000 miles
(16093 km) +
Steady highway
driving
8100 miles
(13036 km) –
9700 miles
(15611 km)