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.
MR20DE engine models:

QR25DE engine models:

See also:
Safety
Traction control is available on select models. The Frontier offers advanced
brake controls in 4x4 models, including an electronic stability system, Hill
Descent Control and Hill Start Assist. HDC ...
Engine compartment check locations
Engine compartment check locations
1. Power steering fluid reservoir.
2. Engine oil filler cap.
3. Brake fluid reservoir.
4. Air cleaner.
5. Fuse block.
6. Battery.
7. Fuse/Fusible link box.
...
Increasing fuel economy
-Accelerate slowly and smoothly. Maintain
cruising speeds with a constant accelerator
position.
- Drive at moderate speeds on the highway.
Driving at high speed lowers fuel economy.
- Avoid unn ...
