Ford Super Duty Owner's Manual page 251

250
This feature applies the vehicle brakes at individual wheels and, if
necessary, reduces engine power. If the trailer begins to sway, the
stability control light flashes and the message TRAILER SWAY
REDUCE SPEED appears in the information display. The first thing to
do is slow the vehicle down, then pull safely to the side of the road and
check for proper tongue load and trailer load distribution. See the Load
Carrying chapter for specific loading information.
RECOMMENDED TOWING WEIGHTS
Note: Do not exceed a trailer weight of 5000 pounds (2268 kilograms)
when towing with, or by, bumper only.
Note: Trailer frontal area is the total area in square feet (meters) that a
moving vehicle and trailer are exposed to air resistance. The following
trailer frontal area limitations should be considered in selecting a trailer
based on your vehicle configuration:
• 60 feet
2
(5.57 meters
trailers.
Note: Exceeding these limitations may significantly reduce the
performance of your towing vehicle. Selecting a trailer with a low
aerodynamic drag and rounded front design will help optimize
performance and fuel economy.
Note: For high altitude operation, reduce the gross combined weight by
2% per 1000 feet (300 meters) starting at the 1000 foot (300 meter)
elevation point.
Note: Certain states require electric trailer brakes for trailers over a
specified weight. Be sure to check state regulations for this specified
weight. The maximum trailer weights listed may be limited to this
specified weight, as the vehicle's electrical system may not include the
wiring connector needed to activate electric trailer brakes.
Your vehicle may tow a class I, II, III and IV trailer or fifth-wheel trailer
provided the maximum trailer weight is less than or equal to the
maximum trailer weight listed for your engine and rear axle ratio on the
following chart.
To calculate the maximum loaded trailer weight for your vehicle:
1. Start with GCWR for your vehicle model and axle ratio (see the
following chart).
2. Subtract all of the following that apply to your vehicle:
• Vehicle curb weight
• Hitch hardware weight (e.g. draw bar, ball, locks, weight
distributing, etc.)
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)
Towing
2
) for conventional, 5th wheel and gooseneck