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Liquid-coolant Circulation

A term used for coolant circulation.

Liquid-cooled Engine

An engine that is cooled by circulating coolant around the cylinders and through passages in the heads.

Liquid-crystal Display (LCD)

A type of alpha-numerical readout display on some instruments using a liquid-crystal film sandwiched between glass plates that become opaque when an electrical current is applied.

Liquid-filled Gauge

A mechanical instrument that is filled with a clear liquid to tamp out oscillation that could affect accuracy.

Liquid-vapor Separator

An evaporative emissions or fuel-supply-system control component that allows vaporized fuel to return to the fuel tank, where it condenses for reuse. Uncondensed vapors flow through tubing into the charcoal canister.

Liquidus

The lowest temperature at which a metal or an alloy is completely liquid.

Liquified Natural Gas (LNG)

Methane gas (CH4) that has been converted to a liquid by chilling.

Liquified Petroleum Gas (LPG)

A predominately propane gas (C3H8) that contains some butane gas (C4H10) that is compressed to a liquid state.

Liquifier

A term used for condenser.

Liter

A metric unit of liquid measure.

Litmus

An absorbent paper strip impregnated with purple-colored matter that turns blue if dipped into an alkaline solution and red if dipped into an acid solution.

Little End

The smaller end of a connecting rod.

Live Axle

An axle through which power is applied via a differential and half shaft.

LMDM

Acronym for Left Middle Door Module (GM).

LML

Lean misfire limit.

LNG

An acronym for liquified natural gas.

Lo Po

Low performance.

Load

1. The demand for power placed on an engine. 2. The cargo of a truck or other vehicle. 3. The amount of weight placed on a tire. 4. The heat quantity imposed on an air conditioner. 5. The fuel for a drag racer, such as nitro.6. Any component, circuit, subsystem or system that consumes power. 7. Any intentional resistance in the circuit.

Load Range

1. A term used for load rating. 2. The weight a tire will support at a given inflation pressure.

Load Rating

A term designating the maximum weight that a particular tire is designed to support, usually related to a specific air pressure.