2009 Subaru Impreza Owner's Manual - Page 235

Starting and operating 7-15 Manual transmission - 6 speeds (WRX STI) WARNING Do not drive the vehicle with the clutch disengaged (i.e., when the clutch pedal is depressed) or with the shift lever in the neutral position. Engine braking has no effect in either of these conditions and the risk of an accident is consequently increased. pedal, move the shift lever, and gradually let up on the clutch. If it is difficult to shift into gear, put the transmission in neutral, release the clutch pedal momentarily, and then try again. CAUTION Shift into reverse ONLY when the vehicle has completely stopped. It may cause damage to the transmission to try shifting into reverse when the vehicle is moving. & Selecting reverse gear & Shifting speeds The manual transmission is a fully synchromeshed, 6-forward-speed and 1-reverse-speed transmission. The shift pattern is shown on the shift lever knob. ! Recommended shifting speeds The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table. Shift up 1st to 2nd 2nd to 3rd 1) Slider 3rd to 4th 4th to 5th 5th to 6th mph (km/h) 15 (24) 25 (40) 40 (64) 45 (72) 50 (80) You must raise the slider and hold it in that position before you can move the shift lever to the "R" position. To change gears, fully depress the clutch - CONTINUED -