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・ Dry Falls
・ Dry Falls (North Carolina)
・ Dry Falls Dam
・ Dry fire
・ Dry for wet
・ Dry Fork
・ Dry Fork (Cheat River)
・ Dry Fork (Tug Fork)
・ Dry Fork Mine
・ Dry Fork Plantation
・ Dry Fork Township, Carroll County, Arkansas
・ Dry Fork, Bland County, Virginia
・ Dry Fork, Pittsylvania County, Virginia
・ Dry Fork, Virginia
・ Dry gallon
Dry gas
・ Dry gas seal
・ Dry glue
・ Dry goods
・ Dry Grove Township, McLean County, Illinois
・ Dry Guillotine
・ Dry Gulch Provincial Park
・ Dry Harbour Mountains
・ Dry Heat
・ Dry heat sterilization
・ Dry Hill
・ Dry Hill (disambiguation)
・ Dry Hill, Illinois
・ Dry Hill, West Virginia
・ Dry Hills


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Dry gas : ウィキペディア英語版
Dry gas
Dry gas is an alcohol-based additive used in automobiles to prevent any water in the fuel from freezing, or to restore combustive power to gasoline spoiled by water. The name Drygas is actually a brand name, owned by Cristy. It is a liquid that is added into the fuel tank, that absorbs the water and keeps it in solution. Some brands contain methanol and some contain isopropyl alcohol.〔()〕
Some states require a 10-15% ethanol solution be sold at refueling stations. Most current gasoline-powered automobiles can safely run up to a 10% ethanol solution without any modification. However, at 15% or above older vehicles may require replacing the fuel lines to prevent degradation and rupture, and the electric fuel pump may need modification to prevent ethanol "dry rot". The belief that dry gas is not needed because of the significant amount of ethanol is distorted because ethanol is a drying agent. Due to this fact it has an affinity for water which can be present in the atmosphere. The water that has been "absorbed" then causes issues with freezing fuel lines. The action of adding dry gas (anhydrous methanol or azeotropic iso-propyl alcohol) is suggested to mix with absorbed water lowering the freezing point of the now water and alcohol solution allowing the fuel lines to resist freezing, and allowing the water to be removed when the solution is used by the engine.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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