Live-Axle

This is a non-independent suspension [link to independent suspension], usually on the rear wheels where the differential and wheel hubs are all one unit, thus they move together or are “live.” Today this is most common on rear drive trucks and SUVs, although that is changing as ride and handling becomes more important for even those vehicles. Read More »

Lean Mixture

The condition that exists when the ratio of fuel to air is very low. A lean mixture can contribute to efficient burning of the fuel, resulting in improved gas mileage and low emissions. Read More »

Locking Differential

Applies power to both drive wheels at all times regardless of which one has better traction. This special differential reacts when one wheel (or axle in the case of 4WD) starts slipping by firmly locking up the gears to prevent that slippage. Read More »

Laminated Windshield Glass

The windshield contains a plastic laminate (coating) which keeps pieces of broken glass from being disbursed into the passenger compartment during an accident. It can also contain a tint to reduce heat in the passenger compartment and protect the eyes from glare (like sunglasses.) Read More »

Lubrication

Four-stroke engines continuously circulate oil which lubricates and cools the engine. Two-stroke engines use separate oil to lubricate the transmission and the crankcase/piston. Read More »

Lease

A contract granting the use of a car for a specified period of time in return for a set fee. Leases may be classified as open ended or closed ended. Read More »

Low Emission Vehicle (LEV)

State and federal governments set standards for automakers developing vehicles that will output lower emission levels. Each state determines their own levels as does the federal government. California and New York have some of the most stringent laws. Once the requirements are met for a specific vehicle, the automaker may call that car or truck a Low Emission Vehicle or ... Read More »

X Liter Engine

The total displacement of an engine expressed in liters. This is the total volume within an engine devoted to the combustion which produces power. Read More »

Limits Of Adhesion

Usually a term used by sports car enthusiasts to describe the point of which a car begins to lose grip on the road while making a turn in a curve. This term can also refer to an emergency maneuver, acceleration, braking and tornadoes and hurricanes. Read More »