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Rear-Wheel Drive

The rear wheels push the car forward — acting like a dolly or a shopping cart. In this case, the front wheels do only the steering. Read More »

Rich Mixture

The condition that exists when the ratio of fuel to air is very high. A rich mixture can contribute to inefficient burning of fuel, resulting in poor mileage, higher emissions and black smoke from the exhaust pipe. Read More »

Slingshot

A maneuver in which the driver of the trailing vehicle in a draft line breaks the draft by turning (usually to the left if on an oval track), propelling the car around the leader. Read More »

Stroke

This refers to the distance a piston moves from the top of its motion against the cylinder head to the other extreme at the lower end of the cylinder. It is determined by multiplying that distance by the area of the piston. The displacement or size of the engine is usually expressed in cubic inches or cubic liters. Read More »

Trauma Fee

$6 per $1000 of car value levied annually in Washington State (and others) to support trauma units in hospitals that care predominantly for car crash victims. Read More »

Variable Assist Steering

A power steering system that enables the stiffness or tension of the steering to increase at higher speeds for more control or to soften at low speeds when performing slower activities, such as parallel parking. Read More »

Zeolites

Another term for Zeolites is “aluminosilicate molecular sieve.” In 1756 Cronstedt discovered a selection of natural minerals which, when heated produced steam. Due to this strange phenomenon he called them Zeolites from the Greek for Boiling Stone (zeo – from zein – to boil, lithos – stone). Not until the early 1900’s and in particular the 1940’s did zeolites become ... Read More »

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