See also:

V-6 Gas Mileage, Performance
One of the disappointing elements of the V-6 Frontier — and one that many people in the market for a smaller truck will likely be concerned about — is its gas mileage. With an automatic transm ...

Replacing spark plugs
Iridium-tipped spark plugs It is not necessary to replace iridium-tipped (A) spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance l ...

Octane rating tips
Using unleaded gasoline with an octane rating lower than recommended can cause persistent, heavy “spark knock”. (Spark knock is a metallic rapping noise.) If severe, this can lead to engin ...