Rapid Heat Supplemental Heating System; Dual Fuel Tank Selector Control; Engine-Exhaust Braking - Ford Diesel 2011 Supplement Manual

Driving
Rapid heat supplemental heating system (if equipped)
The optional rapid heat feature is an electrically powered device that is
designed to provide supplemental heat during engine warm up. For
maximum effectiveness mid to low blower speed is recommended during
initial warm up. When operating in automatic mode (when equipped) the
climate control unit will determine the appropriate blower speed for
existing conditions.
Note: Additional aftermarket electrical loads operated during engine
warm up may impact the performance of the rapid heat supplemental
heater.
DUAL FUEL TANK SELECTOR CONTROL (IF EQUIPPED)
If your vehicle is equipped with dual
fuel tanks, you will have a selector
control, located to the right of the
steering wheel, which allows you to
draw fuel from either tank. Your fuel
gauge and the DTE (distance to
empty) will display the amount of
fuel in the currently selected tank.

ENGINE-EXHAUST BRAKING

This feature increases engine braking at higher engine speeds to provide
better grade descent control with less brake and transmission wear and
tear.
This feature is integrated with the tow/haul mode feature. When tow/haul
mode is switched on, the engine-exhaust braking feature will also be
active. For more information on tow/haul, see Automatic transmission
operation in the Owner Guide.
14
2011 Diesel (eco)
Supplement, 5th Printing
USA (fus)