See also:
Panel Mode
Air comes from the outlets in the instrument panel.
Each of these outlets can be individually adjusted to direct the flow of air.
The air vanes of the center outlets and outboard outlets can be m ...
Spark plugs
The cleanness and soundness of the spark plugs are very important for keeping
the engine efficient and polluting emissions down.
The appearance of the spark plug, if examined by an expert eyes, is ...