FORD 2003 F-550 v.4 - Manual (Page 125)

Recommended shift speeds
Upshifts when accelerating (recommended for best fuel
economy)
6-speed transmission
Shift from: Transfer case position 1 (if equipped)
2H or 4H 4L
LO-1 8 km/h (5 mph) 3 km/h (2 mph)
1-2 16 km/h (10 mph) 6 km/h (4 mph)
2-3 32 km/h (20 mph) 13 km/h (8 mph)
3-4 48 km/h (30 mph) 19 km/h (12 mph)
4
- D (Overdrive)
64 km/h (40 mph) 24 km/h (15 mph)
Maximum downshift speeds 1
6-speed transmission
Shift from: Transfer case position (if equipped) 2
2H or 4H 4L
D (Overdrive) -
4
72 km/h (45 mph) 26 km/h (16 mph)
4-3 56 km/h (35 mph) 19 km/h (12 mph)
3-2 32 km/h (20 mph) 13 km/h (8 mph)
2-1 8 km/h (5 mph) 3 km/h (2 mph)
1-LO Only shift to LO when at a stop.
1 Use 2H or 4H for 4WD equipped vehicles.
2 Downshift at lower speeds when driving on slippery surfaces.
Reverse
1. Make sure that your vehicle is at a complete stop before you shift into
R (Reverse). Failure to do so may damage the transmission.
2. Move the gearshift lever into the neutral position and wait at least
three seconds before shifting into R (Reverse).
• The gearshift lever can only be moved into R (Reverse) by moving it
from left of 3 (Third) and 4 (Fourth) before shifting into R (Reverse).
This is a lockout feature that protects the transmission from
accidentally being shifted into R (Reverse) from
(Overdrive).
2003 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA English (fus)
Driving
125