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6 Speed Manual Transmission Shift Speeds in mph
(km//h)
Engine Mode 2 to 3 3 to 4 4 to 5 5 to 6
6.7L
Turbo
Diesel
Engine
Accel
&
Cruise
15 (24) 25 (40) 40 (64) 45 (72)
6 Speed Manual Transmission Shift Speeds in mph
(km//h)
En-
gine
Mode 1to2 2to3 3to4 4to5 5to6
5.7L
Gas
En-
gine
Accel
&
Cruise
15 (24)
25
(40)
40 (64)
45
(72)
50 (81)
Downshifting – Gas Engine
Moving from a high gear down to a lower gear is
recommended to preserve brakes when driving down
steep hills. In addition, downshifting at the right time
provides better acceleration when you desire to resume
speed. For acceleration at speeds less than 20 mph (30
km/h), 2nd gear is recommended.
CAUTION!
When descending a hill, be very careful to downshift
one gear at a time to prevent overspeeding the
engine which can cause valve damage.
To prevent clutch and transmission damage, your vehicle
should be downshifted at speeds no greater than those
listed in the Maximum Recommended Downshifting
Speed chart.
STARTING AND OPERATING 281
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