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INFORMATION OF GASOLINE

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THE STABILITY OF THE WORLD

Good quality gasoline should be stable almost indefinitely if stored properly. Such storage should be in an airtight container, to prevent oxidation or water vapors mixing, and at a stable cool temperature, to reduce the chance of the container leaking. When gasoline is not stored correctly and is left for a period of time, gums and varnishes may build up and precipitate in the gasoline, causing "stale fuel". This may cause gums to build up in the fuel tank, lines, and carburetor or fuel injection components making it harder to start the engine. However upon the resumption of regular vehicle usage, the buildups should eventually be cleaned up by the flow of fresh petrol. A fuel stabilizer may be used to extend the life of the fuel that is not or cannot be stored properly. Fuel stabilizer is commonly used for small engines such as lawnmower and tractor engines to promote quicker and more reliable starting. Users have been advised to keep gasoline containers and tanks more than half full and properly capped to reduce air exposure, to avoid storage at high temperatures,[|[][|39][|]] to run an engine for ten minutes to circulate the stabilizer through all components prior to storage, and to run the engine at intervals to purge stale fuel from the [|carburetor].[|[][|40][|]] Gummy, sticky resin deposits result from [|oxidative] degradation of gasoline. This degradation can be prevented through the use of [|antioxidants] such as [|phenylenediamines], [|alkylenediamines] ([|diethylenetriamine], [|triethylenetetramine], etc.), and [|alkylamines] ([|diethylamine], [|tributylamine], [|ethylamine]). Other useful additives include gum inhibitors such as N-substituted [|alkylaminophenols] and colour stabilizers such as N-(2-aminoethyl)piperazine, N,N-diethylhydroxylamine, and triethylenetetramine.[|[][|41][|]] Improvements in refinery techniques have generally reduced the reliance on the catalytically or thermally cracked stocks most susceptible to oxidation.[|[][|42][|]] Gasoline containing acidic contaminants such as [|naphthenic acids] can be addressed with additives including strongly basic organo-amines such as [|N,N-diethylhydroxylamine], preventing metal corrosion and breakdown of other antioxidant additives due to acidity. Hydrocarbons with a [|bromine number] of 10 or above can be protected with the combination of unhindered or partially hindered phenols and oil soluble strong amine bases such as [|monoethanolamine], N-(2-aminoethyl)piperazine, [|cyclohexylamine], 1,3-cyclohexane-bis(methylamine), 2,5-[|dimethylaniline], 2,6-dimethylaniline, [|diethylenetriamine] and [|triethylenetetramine].[|[][|41][|]] "Stale" gasoline can be detected by a [|colorimetric] [|enzymatic] test for [|organic peroxides] produced by oxidation of the gasoline.[|[][|43][|]]

Other fuels Main articles: [|Alternative fuel] and [|Biofuel]
 * Biofuels are anything made with natural or organic waste EX; wheat, corn
 * [|Biodiesel], for diesel engines.
 * [|Refined vegetable oil]
 * [|Fischer-Tropsch] diesel from biomass
 * [|Biobutanol], for gasoline engines.
 * [|Bioethanol].
 * [|Biogasoline].
 * [|Compressed air]
 * [|Hydrogen fuel]
 * [|Electricity]
 * Fossil fuels:
 * [|CNG] (Compressed Natural Gas)
 * [|Petrodiesel]

[[|edit]] See also

 * [[image:http://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Crystal_energy.svg/29px-Crystal_energy.svg.png width="29" height="28" caption="Crystal energy.svg" link="http://en.wikipedia.org/wiki/File:Crystal_energy.svg"]] || //**[|Energy portal]**// ||
 * [|Aftermarket fuel economy device]
 * [|Aviation fuel]
 * [|Comparison of automobile fuel technologies]
 * [|Drip gas]
 * [|Filling station]
 * [|Fuel dispenser]
 * [|Gasoline gallon equivalent]
 * [|Internal combustion engine] (ICE)
 * [|Jerrycan]
 * [|List of automotive fuel brands]
 * [|Octane rating]
 * [|Oil price increases since 2003]
 * [|List of CO2 emitted per million Btu of energy from various fuels]