Chevrolet 2010 Corvette Owner's Manual page 126

Shift Speeds (Manual Transmission)
WARNING:
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If you skip a gear when you downshift, you could
lose control of the vehicle. You could injure
yourself or others. Do not shift down more than
one gear at a time when you downshift.
This chart shows when to shift to the next higher gear
for the best fuel economy.
Manual Transmission Recommended
Shift Speeds in mph (km/h)
Acceleration Shift Speed
Engine
1 to 2 2 to 3
All
15 (24) 25 (40) 40 (64) 45 (72) 50 (80)
Engines
If the engine speed drops below 900 rpm, or if the
engine is not running smoothly, you should downshift to
the next lower gear. You may have to downshift two
or more gears to keep the engine running smoothly or
for good engine performance.
Notice: When shifting gears, do not move the shift
lever around unnecessarily. This may damage
the transmission. Shift directly into the next gear.
3-32
3 to 4 4 to 5 5 to 6
One to Four Shift Light
(Manual Transmission)
See One-to-Four Shift Light (Manual Transmission) on
page 4-35 for more information.
Downshifting (Manual Transmission)
Do not downshift into the gear shown below at a speed
greater than shown in the table:
1 (First)
2 (Second)
3 (Third)
4 (Fourth)
Notice: If you skip more than one gear when you
downshift, or if you race the engine when you release
the clutch pedal while downshifting, you could
damage the engine, clutch, driveshaft or the
transmission. Do not skip gears or race the engine
when downshifting.
When this light comes on,
you can only shift from
1 (First) to 4 (Fourth)
instead of 1 (First) to
2 (Second).
50 mph (80 km/h)
74 mph (119 km/h)
101 mph (163 km/h)
130 mph (209 km/h)