See also:

Spark plugs
Be sure the engine and ignition switch are off and that the parking brake is engaged securely. Be sure to use the correct socket to remove the spark plugs. An incorrect socket can dam ...

Frontier in the Market
The Frontier is the right-size truck for an urban environment, and with the available V-6 engine it offers decent capability, too, with a large 6,500-pound maximum towing capacity and a 1,541-poun ...

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 t ...