FORD 2010 Mustang v.3 - Manual (Page 208)

Recommended shift speeds
Do not downshift into 1 (First) when your vehicle is moving
faster than 15 mph (24 km/h). This will damage the clutch.
Upshift according to the following chart:
Upshifts when accelerating
(recommended for best fuel economy)
Shift from:
1 - 2 11 mph (18 km/h)
2 - 3 19 mph (31 km/h)
3 - 4 30 mph (48 km/h)
4 - 5 40 mph (64 km/h)
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).
Note: 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 5 (Overdrive).
Parking your vehicle
1. Apply the brake and shift into the neutral position.
2. Fully apply the parking brake, then shift into 1 (First).
3. Turn the ignition off.
WARNING: Do not park your vehicle in Neutral, it may move
unexpectedly and injure someone. Use 1 (First) gear and set the
parking brake fully.
Driving
208
2010 05+ Mustang (197)
Owners Guide, 3rd Printing
USA (fus)