Dodge Challenger 2012 Owner's Manual page 269

Recommended Shift Speeds
To utilize your manual transmission efficiently for fuel
economy, it should be upshifted as listed in recom-
mended shift speed chart.
MANUAL TRANSMISSION
RECOMMENDED SHIFT SPEEDS
Axle
Ratio
mph
3.73
(km/h)
mph
3.91
(km/h)
Earlier upshifts during cruise conditions (relatively
steady speeds) may result in increased fuel economy.
Higher upshift speeds may be used to obtain a desired
acceleration rate.
1-4 4-5 5-6
20 25 42
(32) (40) (67)
20 37 48
(32) (59) (77)
NOTE:
• Your vehicle is equipped with a transmission reverse
inhibitor system. When vehicle speed is greater than
3 mph (5 km/h), the reverse inhibitor activates to help
prevent shifts into REVERSE. When at a complete
stop, you may notice lighter shift efforts into REVERSE
with the ignition switch in the ON position (RUN
position for Keyless Enter-N-Go), as compared to the
ignition LOCK position (OFF position for Keyless
Enter-N-Go). This is normal operation of the transmis-
sion reverse inhibitor system.
• Due to the high performance nature of your drivetrain,
you may hear your transmission. This can be most
noticeable when the vehicle is idling in NEUTRAL
with the clutch engaged (clutch pedal released), but it
may also be heard when driving at low engine RPM.
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