[Original of Truck House] Many users only stay at the point of adding the coolant when it is lacking, and some users even use water directly to replace the coolant, which may be fatal to the engine. Let’s talk about the knowledge of coolant.
● High-quality coolant is composed of various components in a full formula.
Among the types of heavy-duty diesel engine coolant, alcohol-based coolant is the mainstream at present, including ethylene glycol, propylene glycol and so on. This kind of coolant belongs to the full formula category. It is composed of water, coolant (such as ethylene glycol) and additives (such as DCA4 patent formula).
● The mineral content in the water medium of alcohol-based coolant is very strict.
When there is water in the engine coolant, the generation of scale will occur more or less. In qualified coolant, the content of minerals in water medium is extremely strict, as shown in the above figure.
● Mineral scale in water mediumformCause engine failure
The main mineral in the water medium, calcium/magnesium ions, eventually form hard shells of calcium carbonate and magnesium carbonate on the surface of cylinder block, cylinder head, engine water channel and inner wall, which is scale. Often these scales are ignored by people, resulting in high temperature and local overheating of the engine, and it is difficult to troubleshoot.
● scaleharmDeadly 1 mm scale insulation equals 75 mm cast iron.
According to the data of Cumnins Filtration research, 1 mm thick scale has the same heat insulation effect as 75 mm cast iron material with the same area. This is equivalent to the formation of a deadly thermal insulation layer in the engine cooling system, and the engine components can not get the necessary cooling, and the life and wear are greatly increased.
● Scaling measures, cooling system maintenance is not the only treatment.
It must be noted that cleaning scale is not a wise maintenance measure. Because in the engine cooling system, all kinds of materials are in contact with coolant, such as aluminum/aluminum alloy, rubber, cast iron and copper. A single cleaning agent will also cause damage to other components.
● To prevent scale formation, it is necessary to adhere to high-quality coolant and correct maintenance.
Modern high performance diesel engine is absolutelyIt is forbidden to add water to the cooling system.Irreversible damage will occur after working for 100 hours.
Different brands of coolant cannot be mixed.Even those with similar coolant components cannot be mixed.
Coolant needs to be checked regularly.The liquid level of the coolant used for a long time needs to be detected. Under normal circumstances, it is forbidden to add supplementary pure water, especially hard water (well water, river water, including tap water). In case of emergency, distilled water and purified water can be added. When water accounts for more than 30% of the cooling liquid, the formation of scale will be very serious and should be absolutely prohibited.
Friga WF2073 coolant filter being sold in the mall.
Change the coolant regularly., add a coolant filter if necessary.Protect the engine with high-quality coolant.
● summary of the chapter
Scale is only one of the common faults in cooling system, but the harm caused is serious. In the final analysis, the formation of scale lies in the quality of water itself in cooling liquid. You can’t use water instead of coolant, don’t use inferior coolant, and avoid replenishing unqualified water. This is the basic condition. For the basic knowledge of coolant, please pay attention to the next issue, "How is the corrosion/cavitation/cavitation of cooling system formed?" .
● Related links:
Introduction to the function of water filter of patron saint engine of cooling system
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