When choosing and maintaining your coolant, be sure to look at the service interval and maintenance interval of the product. Based on the type of additives, coolants are classified asĮach type of coolant has one of the above as their base category. Conventional, Hybrid and OAT CoolantsĬoolants contain additives which are added to the product to protect from corrosion, cavitation, and scale. Although these terms can be useful in the general classification of coolant, coolants within each type will vary in composition and performance. Typically type classifications are generic terms that are related to the base type and additives used in the coolant. When choosing a Heavy Duty coolant, it is crucial to look for an indication that the coolant meets the 6210 standards.Ĭoolants can also be classified based on product type. The primary additional requirements test the ability of the coolant to protect against cavitation of wet liners, as well as the ability to protect hot surfaces against scale. The ASTM D6210 includes tests of D3306, as well as additional testing that evaluates the performance of the coolant for heavy duty applications. This test also contains performance requirements that evaluate the corrosion protection of coolant under different conditions and against water pump cavitation. The specification measures key coolant attributes like freezing & boiling points. ASTM D3306 contains numerous tests stating the requirements for light-duty coolants. The American Society for Testing and Materials, ASTM, has developed tests that are commonly used in the coolant industry.ĪSTM D3306 and ASTM D6210 are one of the most commonly applied industry standards in use today. This test also determines the chemical compatibility of coolant with cooling system materials. The performance generally refers to the measured performance of the coolant when tested according to industry standards or OEM specifications. They are typically classified based on performance and product type. Hence, knowledge of coolant classification can help in distinguishing coolants from one another. However, many manufacturers do not use standard colour conventions and the coolants with the same colour may have different properties. One of the selection parameters can be colour. Classification of Coolantsĭetermining the right engine coolant for your application could be confusing. Thus, selecting your coolant is of prime importance. According to research, 40% of all engine related problems surface due to incompetent cooling systems. ![]() The chemical combination of coolants ensure that it does not react to the many surfaces comes in contact with while maintaining the engine temperature. ![]() ![]() A coolant filter is used to keep the coolant pure. In order to regulate the engine temperature, the coolant performs other support functions such as protection from corrosion, cavitation, and scales, that commonly appear in heavy-duty diesel engines. To understand the gravity of cooling systems, a typical heavy duty cooling system circulates the equivalent of a 16,000-litre swimming pool worth of coolant every hour. Coolant technology serves an extremely important purpose of maintaining the engine. Although it sounds like a simple process, it is a rather crucial one. A thermostat is used to regulate the temperature of the coolant during the circulation. The coolant receives the heat and circulates it through the radiator, dissipating it back into the atmosphere. Engine coolant is used to remove heat produced by the engine and transfer it into the cooling system.
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