Wednesday, September 14, 2016

Diesel-fuel-quality

Diesel Fuel Quality


The designs of diesel engines striving to increase


performance have made a lot of advancements in engine


fuel delivery to the combustion chamber. The diesel


engines of today are much quieter, smoother, and


also more powerful. The quality of diesel fuel on


the other hand has not advanced at the same rate as


the improvements of engines.


As soon as it is produced, diesel fuel begins to


deteriorate. Less than 30 days of refining, all


diesel fuel, regardless of the brand, goes through a


natural process called oxidation. This process forms


varnishes and gums in the fuel by causing the


molecules of the fuel to lengthen and start bonding


together.


Now, these components will drop to the bottom of the


fuel tank and form diesel sludge. The fuel will


begin to turn very dark in color, smell bad, and


cause the engine to smoke. The engine starts to


smoke as some of these clusters are small enough to


pass through the engine filtration and on to the


combustion chamber.


As the clusters begin to increase in size, only a


small amount of the molecules will get burned, as


the rest will go out the exhaust as unburned fuel


and smoke.


Its estimated that eight out of every ten diesel


engine failures are directly related to poor quality


and contaminated fuel. The build up of contamination


in the fuel systems and storage tanks can clog


filters, thereby causing the engine to shut down,


and damage to the engine to occur.


The number one reason for bad fuel is due to the


increasing popularity of diesel power and the


accompanying increased demand for more diesel fuel.


Long ago, diesel fuel remained in the refinery


storage tanks long enough to naturally seperate and


begin to settle, allowing the clean fuel to be


drawn apart. Now, with the demand getting higher


than ever, the fuel is never stationary long enough


to settle, and the suspended water and solids are


passed on to the person buying the fuel - you.


The changes in refinery techniques is also a


problem. In order to get more products, diesel


fuel is being refined for more marginal portions of


the crude barrel. This results in a lower grade


product that is thicker and also contains a lot


more contamination.


As time continues to pass and technology gets better


and better, one can only hope that the quality of


diesel fuel improves. As it stands now, the quality


isn't good at all. If you run diesel fuel, all


you can basically hope for is that the fuel you


are getting isn't contaminated.


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