2009 Nissan Altima Owner's Manual - Page 255

For normal acceleration in low altitude areas (less than 4,000 ft [1219 m]): For QR25DE: GEAR CHANGE ACCEL shift point MPH (km/h) 15 (24) 25 (40) 33 (53) 44 (71) 51 (82) CRUISE shift point MPH (km/h) 8 (24) 17 (27) 25 (40) 36 (58) 51 (82) For quick acceleration in low altitude areas and high altitude areas (over 4,000 ft [1219 m]): For QR25DE: Gear change 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th MPH (km/h) 8 (13) 17 (27) 25 (40) 36 (58) 51 (82) Suggested maximum speed in each gear Downshift to a lower gear if the engine is not running smoothly, or if you need to accelerate. Do not exceed the maximum suggested speed (shown below) in any gear. For level road driving, use the highest gear suggested for that speed. Always observe posted speed limits, and drive according to the road conditions, which will ensure safe operation. Do not over-rev the engine when shifting to a lower gear as it may cause engine damage or loss of vehicle control. GEAR 1st 2nd 3rd 4th 5th 6th QR25DE MPH (km/h) 32 (53) 59 (95) 82 (133 VQ35DE MPH (km/h) 36 (58) 58 (93) 81 (131 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th For VQ35DE: Gear change MPH (km/h) 15 (24) 25 (40) 40 (64) 45 (72) 50 (80) 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th For VQ35DE: GEAR CHANGE ACCEL shift point MPH (km/h) 15 (25) 25 (40) 31 (50) 36 (58) 43 (69) CRUISE shift point MPH (km/h) 9 (14) 19 (30) 26 (42) 31 (50) 37 (59) 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 5th to 6th Starting and driving 5-17