Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.

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RPM

A measurement of how fast your engine--specifically your crankshaft--is spinning, RPM is an initialism for 'Revolutions Per Minute'.



See Also:
Coolant
Kickdown Switch
Crankshaft Pulley
Backfire
Crankcase
Lug Nuts
Connecting Rod
Idle

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