Automotive Glossary

Browse the glossary using this index

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O

Obscene

Offensive, foul, disgusting.

OC

Oxidation Catalyst.

Occupation

The job that you do. For example, training to be a motor mechanic is training for an occupation.

Octane Rating

The anti-knock property of petrol fuel. The octane rating or number is a comparison against two standard fuels, heptane and iso-octane having values of zero and 100 respectively. Most road vehicles use petrol with octane ratings between 93 and 98.

OD

Outside Diameter

Odometer

Instrument that displays distance travelled by vehicle.

OE

Original Equipment

OEM

Original Equipment Manufacturer.

Offensive

To attack somebody/something.

Office Applications

A package of programs including Word Processor (Word), Spreadsheet (Excel), Presentation (PowerPoint), Email and Organisation (Outlook).

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