Oil consumption - what should it be?


2018-03-18 21:30:32




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For every car owner, it is normal to monitor any changes in his car. Unfortunately, they rarely aimed for the better as parts wear out, harden rubber products, gaskets also lose their properties.

All these fluids are referred to as "consumables", because over time during operation is spent, hence the name. Many may say that oil is not consumed. This is not so. Each engine has a normal oil consumption, which averages a quarter of a liter per 1000 kilometers.oil Consumption

Increased oil consumption says about the leak or about the wear on some parts. In the first case, it is easy to find, and Troubleshooting is reduced to replacing the sealing parts and gaskets. The second case is a bit worse, it can become a considerable dent in the family budget.

Oil Consumption can be high if it gets into the combustion chamber and mixed with the combustible mixture. Of course, that its octane number becomes much smaller, as a consequence – reducing productivity. In principle, the engine oil does not burn, it remains the only carbon on the parts, and the fact that there was soot coming out with the exhaust gases in exhaust system

Thus, on the one hand, a high consumption of oil leads to an increase in emissions, and on the other – deposited on the parts, including the valves, then they don't completely close, resulting in a falling compression in the cylinders, and hence the engine does not develop full power.Increased oil consumption


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But it's the effects, now a bit about the causes. Oil consumption, like fuel consumption, depends on the degree of wear of the parts. As mentioned above, it grows from getting into the combustion chamber. To do this in two ways: either it remains on the walls of the cylinder, after moving the piston to its lower dead point, or with a combustible mixture through the valve.

So, the first case – worn piston rings because the oil control rings cannot cope with its intended purpose. Typically, such a failure is accompanied by decreased power at lower rpm, as well as increased smoke from the exhaust pipe. Each unit is equipped with crankcase ventilation. It is served by gases from the intake manifold for heating the combustible mixture. Besides, all that is “not burnt out” for the first time, served repeatedly. So, to determine the wear of piston rings, it is enough to remove the tubing from the crankcase to the manifold, which is popularly called “sopun”.Big oil consumption

The Second event is a consequence of the solidification of the oil caps that you are wearing the valve guides and seals perform the function. In fact, they remove the oil from the valve stem when it is opened.

From the above it follows that in order to keep the oil consumption within acceptable limits, must change piston rings and valve seals, and to reduce wear, you need time to change the oil, which over time loses its viscosity and lubricating properties.

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ZH: https://www.tostpost.com/zh/cars/3573-oil-consumption---what-should-it-be.html

Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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