2009 Dodge Challenger Owner's Manual - Page 255

STARTING AND OPERATING 253 NOTE: Recommended Shift Speeds To utilize your manual transmission efficiently for fuel • Your vehicle is equipped with a transmission reverse economy, it should be upshifted as listed in recominhibitor system. When vehicle speed is greater than mended shift speed chart. 3 mph (5 km/h), the reverse inhibitor activates to help prevent shifts into REVERSE. When at a complete MANUAL TRANSMISSION stop, you may notice lighter shift efforts into REVERSE RECOMMENDED SHIFT SPEEDS with the ignition key ON, as compared to the ignition Axle 1-4 4-5 5-6 key OFF position. This is normal operation of the Ratio transmission reverse inhibitor system. mph 20 25 42 3.73 • Due to the high performance nature of your drivetrain, (km/h) (32) (40) (67) you may hear your transmission. This can be most mph 20 37 48 noticeable when the vehicle is idling in NEUTRAL 3.91 (km/h) (32) (59) (77) with the clutch engaged (clutch pedal released), but it may also be heard when driving at low engine RPM. Earlier upshifts during cruise conditions (relatively Also, this may be more noticeable when the transmissteady speeds) may result in increased fuel economy. sion is warm. This is a normal condition and is not an Higher upshift speeds may be used to obtain a desired indication of a problem with your clutch or acceleration rate. transmission. 5