- G -

Global Positioning System

Abbreviated GPS. GPS technology uses U.S. government satellites to calculate a location. By using the precise time and the exact positioning of three satellites, a GPS unit on earth can calculate exactly where it is (including its elevation, latitude and longtitude) to within 100 feet. This technology is used in navigation systems to help drivers determine their location and find their way to a particular destination.

Global Warming

The gradual warming of the earth's atmosphere due to the greenhouse effect.

Gloss

An appearance characteristic that gives the perception of the brightness and luster of a smooth, polished surface.

Glove Box

A small, enclosed storage area in the front passenger compartment of a vehicle.

Glove Compartment

A term used for glove box.

Glow Plug

An electrical plug used to preheat the combustion chamber to aid in starting a cold diesel engine.

Glyptal

A specific brand of Class F insulating enamel.

GM

General Motors.

GMAC

An acronym for gas-metal arc cutting.

GMAPPA

Governor manifold absolute pressure per altitude.

GMAW

An acronym for gas-metal arc welding.

GMC

General Motors Corporation.

GMC Supercharger

A positive displacement, mechanically-driven blower developed by General Motors for two-stroke, diesel-truck engines later adapted for gasoline racing engines.

GMM

An acronym for Graphing Multi Meter.

GN

An acronym for Grand National.

Go Button

The accelerator.

Go Kart

A term for a specific brand of racing kart, often used as a generic term for any kart.

Goat

A term used to identify a Pontiac GTO.

Gobble

To run extremely fast.

Gofer

1. Go for. 2. A person who runs errands.