Tread

The part of the tire that comes into contact with the road.

    See also:

    Traction
    Traction is the result of friction between the tires and the road surface. ...

    Engine oil
    Notes on the oil level Depending on the driving style, the vehicle consumes up to 0.9 US qts. (0.8 l) of oil over a distance of 600 miles (1000 km). The oil consumption may be higher than this ...

    Driving, Part Two
    The CL's standard Airmatic suspension is hard to fault. It can operate in either its default Comfort setting or a firmer Sport setting. Without going into technical details, I'll say that it absor ...