For Octane we have terms and definitions in 5 topics. The topics are Automotive, Drugs, Energy, Global Warming and Oil.

Octane (Automotive)

The hydrocarbon substance in gasoline that reduces engine knock or pinging, which is a noise caused by premature ignition of fuel in the cylinder combustion chamber. The higher the octane number, the less chance of premature ignition. High octane, which has a rating above 91, is useful only when recommended by the manufacturer.

Octane (Drugs)

PCP laced with gasoline

Octane (Energy)

A rating scale used to grade gasoline as to its antiknock properties. Also any of several isometric liquid paraffin hydrocarbons, C8H18. Normal octane is a colorless liquid found in petroleum boiling at 124.6 degrees Celsius.

Octane (Global Warming)

A flammable liquid hydrocarbon found in petroleum. Used as a standard to measure the anti-knock properties of motor fuel.

Octane (Oil)

A performance rating of gasoline; the higher the octane number, the greater the anti-knock quality of the gasoline.

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