![]() ![]() ![]() ![]() Starting fluid is not recommended for regular use with some two-stroke engines because it does not possess lubricating qualities by itself. Caution is required when using starting fluid with diesel engines that have preheat systems in the intake or glow-plugs installed, as the starting fluid may pre-ignite, leading to engine damage. It is used more often with carbureted engines than with fuel injection systems. Mechanics sometimes use it to diagnose starting problems by determining whether the spark and ignition system of the vehicle is functioning if the spark is adequate but the fuel delivery system is not, the engine will run until the starting fluid vapors are consumed. Other uses include cold weather starting, vehicles that run out of fuel and thus require extra time to restore fuel pressure, and sometimes with flooded engines. Using starting fluid to get the engine running faster avoids wear to starters and fatigue to one's arm with pull start engines, especially on rarely used machines. Starting fluid is sprayed into the engine intake near the air filter, or into the carburetor bore or a spark plug hole of an engine to get added fuel to the combustion cylinder quickly. ĭiethyl ether is distinct from petroleum ether (a crude oil distillate consisting mostly of pentane and other alkanes) which has also been used for starting engines. Historically, Diethyl ether, with a small amount of oil, a trace amount of a stabilizer and a hydrocarbon propellant has been used to help start internal combustion engines because of its low 160 ☌ (320 ☏) autoignition temperature. Some formulations contain butane or propane as both propellant and starting fuel. Some modern starting fluid products contain mostly volatile hydrocarbons such as heptane, (the main component of natural gasoline) with a small portion of diethyl ether, and carbon dioxide (as a propellant). It is typically available in an aerosol spray can, and may sometimes be used for starting direct injected diesel engines or lean burn spark engines running on alcohol fuel. Starting fluid is a volatile, flammable liquid which is used to aid the starting of internal combustion engines, especially during cold weather or in engines that are difficult to start using conventional starting procedures. ![]()
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