### fuel:

Gasoline
* All gasoline engines with carburetors tend to vent fuel vapor after shutdown
  - leaks into soil and groundwater are dangerous to the public health and the environment
  - starts out as crude oil
  - gasolines have finite storage life
* Most gasoline contains aromatic hydrocarbons
  - is used in engines that move automobiles and trucks
* Most gasoline produces carbon dioxide
  - sold in the United States has fairly high sulfur levels
  - gasolines already contain some kind of gas line antifreeze
* Some gasoline comes from the natural gas found with petroleum
  - contributes to pollution problems
  - has density
  - kills ants
  - replaces kerosene
* accounts for many severe burns each year
  - more than half of the oil used in Oregon
  - nearly one-fifth of the energy consumed in the United States
* also contain smaller amounts of a number of other additives
  - degrades with time
  - fuels boats, recreational vehicles, and various farm and other equipment
  - includes transmix
* by-product of petroleum that fuels our cars.
* causes a significant number of burn injuries each year.
* colorless, pale brown, or pink liquid, and is very flammable.
* comes from oil that took millions of years to make deep within the earth
* commodity whose price fluctuates with supply and demand.
* common source of ethylbenzene exposure.
* contain a number of additives.
* contains almost none
* contains benzene, a human carcinogen
  - known carcinogen
  - dangerous additives, including chemicals known to cause cancer in humans
  - many toxic chemicals such as benzene, xylene, toluene and many other additives
* differ from location to location and from season to season.
* far more volatile, dangerous product to transport than napalm is.
* floats on water.
* free-market commodity.
* fuel mixture.
* gives off vapors that are heavier than air
* goes underground for storage.
* has lots of chemical potential energy stored up inside it to help make cars go
  - only one real use
  - similar cyclical spikes in the summer, when vacationers are on the road
* ignites easily and burns vigorously.
* is actually the liquid form of pure truth.
* is also a skin irritant
  - very dangerous to store
* is an example of a liquid mixture
  - important part of our everyday lives
  - integral component for the successful operation of the combustion engine
  - another hazard around houses and farms
  - at a nine-year high
  - blended with additives to make it burn cleaner
* is burned in a car engine
  - car and truck engines
  - cheap in Colombia, since it is an exporter of petroleum
  - cheaper than bottled water
  - clear and has a distinct odor
  - composed, in part, of extremely dangerous chemicals
  - dangerous and flammable
  - defined to include gasoline and gasoline blendstocks
  - explosive and much too dangerous to use on grills
* is extremely flammable and can explode and burn if ignited
  - volatile and accounts for many severe burns each year
  - flammable because it vaporizes with air to form a mixture that ignites easily
  - fluid
  - formulated differently for varying climate conditions
  - gasoline until it reaches the terminal
  - generally more toxic but evaporates fairly quickly
  - hazardous to store
  - least elastic, since there are few substitutes for it in the operation of cars
  - lighter than water, while hydrogen and helium are lighter than air
* is liquid fuel
  - under atmospheric conditions, meany it offers a much more dense energy storage
  - liquids
* is located in boats
  - gas stations
  - refineries
* is made differently for winter and has butane added to help starting in the cold
  - from non-renewable petroleum
  - of similar types of molecules but much shorter, so they tumble around more easily
* is made up of a combination hydrocarbons with different molecular weights and structure
  - hydrogen and carbon atoms in chains
  - meant only to fuel an engine
  - measured in litres in Canada
* is more expensive in Europe than in America
  - readily and widely available than acetylene
* is much like many other commodity products, although it differs in one important aspect
  - more likely than wheat to be a cause of international conflict
  - nonpolar and dissolves nonpolar materials such as fat or oil
  - one of the great anomalies of American life
* is one of the most commonly used accelerants in arson fires
  - toxic substances in common use and it is everywhere
  - volatile flammable liquids
* is only one of the lighter fractions of crude oil
  - to be used in engines as a source of energy
  - predominately carbon and hydrogen
  - priced in the world market daily
  - produced from petroleum in the refining process
* is refined from crude oil
  - relatively non-toxic after a single or acute exposure by all routes
* is sold by the liter along the roadside in plastic containers
* is the bloodline that keeps America moving
  - key to freedom of travel
  - primary source of benzene, toluene and related aromatics in the air
  - responsability of the customer
  - three times as expensive as in the United States
* is used for cars
  - in cars, boats, motorcycles, lawn mowers and other engines
* is used to power automobiles, lawnmowers, powerboats and motorcycles
  - provide energy for most motor vehicles and piston-engine airplanes
  - what's called a nonrenewable source
* light fraction of petroleum which is quite volatile and burns rapidly.
* mixture of hydrocarbons, which burn in an engine
  - liquid hydrocarbons that have a variety of boiling points
  - lots of chemicals, including known carcinogens, cancer-causing agents
  - many chemicals that burn at different rates
  - materials, some of which are known carcinogens
* motor fuel only
  - used in automobiles and other vehicles
* only burns so fast.
* poses a risk to pets and children.
* possible cause of cancer.
* product designed to fuel internal combustion engines.
* remains cheap in the United States compared with almost every other part of the world.
* represents over half of all products generated by oil refineries in the United States.
* rich mixture of toxic chemicals.
* sold in Tulsa is refined in Oklahoma and on the Texas Gulf Coast.
* substance made of carbon and hydrogen.
* thin, volatile liquid with a distinctive odor.
* typical flammable liquid.
* very complex substance made up mainly of carbon and hydrogen atoms.
* volatile material and people don t walk around with it in their shoes.
+ Antiknock agent: Chemistry :: Fuel
  * Gasoline is a fuel mixture. High compression internal combustion engines place gasoline under great pressure. A.H. Gibson and Harry Ricardo in England and Thomas Midgley, Jr. and Thomas Boyd in the United States led early research into this effect. They discovery that lead additives ended or reduced knocking. So, most gasoline brands started adding lead in the 1920s. The lead antiknocking agents allowed the sale of even more powerful, higher compression car engines.
+ Gasoline, Dangers: Fuel :: Hydrocarbons
  * Gasoline is very dangerous. It can explode when an electric spark lights it. It is also harmful if a human drinks it or if it gets on the skin. It hurts the environment and human health by creating poisonous gases such as carbon monoxide. If a gasoline engine is used indoors or in a closed space, the carbon monoxide can cause death in minutes. Many people die every year from using gasoline-powered generators indoors, or leaving vehicles running inside a garage.