DICTIONARY OF AUTOMOTIVE TERMS - "Cd"

Cd:

Abbreviation for "Drag Coefficient," a measurement of air resistance (drag). The lower the number, the less drag that a vehicle or shape has.

CD:

1. Diesel engine oil introduced in 1955.
2. Acronym for capacitive discharge.
3. (Cd) A measurement of drag coefficient.

CD changer:

A device which is connected to a stereo system and allows several music CDs to be played.

CDI:

Acronym for "Capacitor discharge ignition"
Also See:
CDI box

CDI box:

Acronym for "capacitive discharge Ignition" device sometimes controlled by a computer. It is designed to help the spark plug fire at a rate consistent with the rpms of the engine.

CDL

CDL: Acronym for "Commercial Driver's License" -- A US license which authorizes an individual to operate commercial motor vehicles and buses over 26,000 pounds gross vehicle weight. For operators of freight-hauling trucks, the maximum size which may be driven without a CDL is Class 6 (maximum 26,000 pounds gross vehicle weight). In Canada it is called a "Class 1 license."

CD player:

A device which plays music compact discs. Usually combined with a stereo radio receiver and sometimes with a CD changer.

CDR:

Acronym for crankcase depression regulator

CDV:

Acronym for "Car-Derived Van" (e.g., Renault Kangoo).

Cd value:

A number representing the coefficient of drag which is the amount of resistance that a moving vehicle makes in a wind tunnel

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