2005 Lexus IS 300 Owners Manual - Page 268
2005 Lexus IS 300 Manual
Page 268 highlights
04 06.30 STARTING AND DRIVING MANUAL TRANSMISSION Recommended shifting speeds The transmission is fully synchronized and upshifting or downshifting is easy. For the best compromise between fuel economy and vehicle performance, you should upshift or downshift at the following speeds: SV31034 gear 1 to 2 or 2 to 1 2 to 3 or 3 to 2 3 to 4 or 4 to 3 4 to 5 or 5 to 4 km/h (mph) 24 (15) 40 (25) 64 (40) 72 (45) The shift pattern is the conventional pattern shown above. Downshift to the appropriate gear if acceleration is needed when you are cruising below the above downshifting speeds. Upshifting too soon or downshifting too late will cause lugging, and possibly pinging. Regularly revving the engine to maximum speed in each gear will cause excessive engine wear and high fuel consumption. Maximum allowable speeds To get on a highway or to pass slower traffic, maximum acceleration may be necessary. Make sure you observe the following maximum allowable speeds in each gear: gear 1 2 3 km/h (mph) 56 (35) 98 (61) 145 (91) CAUTION The shift lever knob can become extremely hot after parking under the sun. Press the clutch pedal down fully while shifting, and then release it slowly. Do not rest your foot on the pedal while driving, because it will cause clutch trouble. Do not use the clutch to hold the vehicle when stopped on an uphill grade - use the parking brake. Upshifting too soon or downshifting too late will cause lugging, and possibly pinging. Regularly revving the engine to maximum speed in each gear will cause excessive engine wear and high fuel consumption. 247