Diesel fuel is a specific portion that is refined from crude oil.  Crude oil is a naturally occurring organic liquid that is pumped from the ground.
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    Diesel Fuel additives are chemical compounds which when combined in specific formulations alter the chemistry of  the diesel fuel to improve specific properties or traits of the diesel fuel during storage or when consumed.
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    There are no specific standards or guidelines established to govern classifying a Diesel Fuel as a Premium Diesel Fuel.  While there are octane standards defined for gasoline which determines a difference between grades of gas there are no such specification standards for diesel fuel.   
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    Premium Diesel (as defined by Amalgamated®) is a chemically enhanced diesel fuel that provides the maximum power and optimum performance when utilized in an engine.  Quality Premium Diesel Fuel would contain cetane, stabilizers, detergents, lubricity agents, and specific ancillary additives. Cetane increases ignition and performance.  Stabilizers retard the natural hydrocarbon degradation of fuel oils during storage. Detergents are used as cleaners to remove carbon and gummy deposits from fuel injection systems and keep them clean.   Lubricity agents reduce friction in moving parts in fuel pumps and injectors to reduce maintenance and extend their life.  Ancillary additives reduce deposits, minimize rust and corrosion and extend the useful life of a diesel engine.
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    The dictionary defines amalgamate : To combine into a unified or integrated whole.  Amalgamated® combines chemistries that, when mixed with diesel fuel, provide the best available performance benefit improvements for diesel engines, systematically blended into a unified product that will not settle out or separate over time.
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    The benefits of a quality Premium Diesel Fuel recover the minimal costs incurred to treat the diesel fuel and save money in the long run.  Diesel fuel economy improvements are easy to track and calculate but they are just a portion of the savings that are achieved with good diesel fuel additives.  Some diesel engine maintenance cost reductions from improved starting in cold weather that extends battery and starter life are difficult to measure.  Other saving are achieved over a much longer period of time like improved cleaning and better lubricating of diesel fuel injectors and the diesel fuel pump resulting in less diesel engine fuel system component wear and replacement.  The ultimate savings is a greatly increased life expectancy of the diesel engine using a quality premium diesel fuel incorporating the right diesel fuel additive.   
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Ash is a naturally occurring non-combustible material in diesel fuel.
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American Society for Testing and Materials is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.
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    Atomization is the result of the breakdown of diesel fuel droplets into fine particles when injected into the combustion chamber of a diesel engine.   (See permalink.)     Diesel fuel injector displaying proper fuel distribution and atomization.
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    BTU is the measure of diesel fuels heat energy content.
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    Cetane is a liquid hydrocarbon that is used in diesel fuels to improve ignition.  40 is a minimum cetane number.  OEM's want a 50 cetane number.
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    A Cetane Engine is a laboratory test that runs diesel fuel on an actual diesel test engine to determine a performance number.
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    Cetane Ignition Improver (2-ethyl-hexyl-nitrate) is added to shorten ignition delay in the fuel chamber which results in an increased Engine Number.
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    The Cetane Index is solely dependent on the quality of the diesel fuel and is not affected by the addition of cetane improver additive.  It is a calculated number from the distillation tests on the fuel and its specific gravity.
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    Cold Filter Plug Point - A laboratory test that measures the temperature when wax crystals restrict the flow of diesel fuel through a specific orifice.
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    The Cloud Point is the temperature of the diesel fuel when wax crystals begin to form and the appearance of the diesel fuel begins to turn cloudy.
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    Rust or Corrosion Modifiers prevent pitting and erosion of metal surfaces.
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    Crude Oil is an organic fossil petroleum liquid as it comes from the ground, before it is refined.
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    De-Emulsifiers are added to Premium Diesel Fuels to minimize fuel / water suspension.
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    Deposit Modifiers are added to Premium Diesel Fuels to minimize non-combustible fuel related deposits.
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