2004 Nissan Altima Owner's Manual - Page 161
2004 Nissan Altima Manual
Page 161 highlights
If it is difficult to move the shift lever into R (Reverse) or 1 (1st), shift into N (Neutral), then release the clutch pedal. Depress the clutch pedal again and shift into R (Reverse) or 1 (1st). For VQ35DE: GEAR CHANGE ACCEL shift point MPH (km/h) 13 (21) 23 (37) 33 (53) 39 (63) CRUISE shift point MPH (km/h) 13 (21) 16 (26) 27 (44) 36 (58) when shifting to a lower gear as it may cause engine damage or loss of vehicle control. GEAR 1st 2nd 3rd 4th 5th QR25DE MPH (km/h) 30 (50) 55 (90 VQ35DE MPH (km/h) 35 (55) 65 (105 Suggested upshift speeds The following are suggested vehicle speeds for shifting into a higher gear. These suggestions relate to fuel economy and vehicle performance. Actual upshift speeds will vary according to road conditions, the weather and individual driving habits. For normal acceleration in low altitude areas (less than 4,000 ft [1,219 m]): For QR25DE: GEAR CHANGE ACCEL shift point MPH (km/h) 15 (24) 25 (40) 36 (57) 40 (64) CRUISE shift point MPH (km/h) 15 (24) 18 (28) 30 (48) 39 (62) 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th For quick acceleration in low altitude areas and high altitude areas (over 4,000 ft [1,219 m]): Gear change 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th MPH (km/h) 15 (24) 25 (40) 40 (64) 45 (72) 1st to 2nd 2nd to 3rd 3rd to 4th 4th to 5th 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 Starting and driving 5-11