End. Start here see a few more I would like to stay on liquids for the cooling system. Now there was not quite clear the situation with antifreeze. The fact that very often from different manufacturers fluids (coolant) are the same types of antifreeze are painted in different colors, which creates some confusion among motorists. Well, if the car is under warranty and the replacement is made in the original dealership Techcenter OJ (note that prices are not much will please). Less affluent groups of citizens with post-guarantee machines, it may be advisable to use my uncomplicated tips to save some money and not deliver the cooling system of any trouble. Now there are 6 national standards governing the concentration of bases and additives. Plus, this every single manufacturer adds colors according to their notions of beauty, which also does not give confidence in the correctness of the choice. The main criterion that should guide the choice of coolant, an instruction manual of your car. According to the European classification of modern antifreeze are class AWM G11 and AWM G12. They are ready for use. There concentrates labeled G 30, G 40 and G 48. They need to be diluted with water, but only distilled water. Why distilled? The fact that the usual tap water in its composition has salt (brackish), and just the dirt that the operation be postponed in the cooling system, interfering with normal circulation and reducing heat transfer. The percentage of distilled water and concentrate can be different. Temperature schedule pour antifreeze, depending on the amount of added water can be seen on the canister, even in the most primitive form. Naturally, in the car, operated in the south, need to concentrate less than in a car bearing a working watch in the Far North. Pretty funny fact, but the heat of modern anti-freeze is almost two times less than that of distilled water. That is, the water cools better, but because it is in relation to the engine and cooling system is more aggressive and use it in its pure form only in extreme cases. And when the air temperature below zero centigrade, after visit the water should be drained from the system. Besides the fact that the antifreeze does not stiffen at low temperatures, the higher the temperature of its boiling point, it has a package of additives that solve the following problem: prevent corrosion, reduce wear, oils, and have in the dyes. First of all, they need to ensure that no one is confused with antifreeze liquid foods. It's poison. 90 grams is usually enough even physically healthy person to death. Ethylene glycol, which is contained in the coolant at a concentration of about 60%, and is a poison. In addition to preventive action, the dye may be fluorescent, which allows you to quickly find leaks in the light of the ultraviolet lamp. The engine is a modern foreign cars are very few easily accessible places, so the property of antifreeze to glow in the leak acknowledge very useful. Earlier, in the era of the Iron Curtain, and then, in the period of primitive accumulation of capital, but domestic production of antifreeze under the name "Antifreeze", nothing was available. Many people still use it in their foreign cars of old, not knowing that reduce the residual service life of such parts not cheap, as the radiator and pump. And generally reduce the efficiency of the cooling system. "Antifreeze" - a trademark, meaning the "technology of organic synthesis" with the end of "OL", signifying that a product used alcohol. Developed "Antifreeze" long and is designed for cars "shaggy" years of development - those that were previously the entire fleet of our country. Keep in mind that "Antifreeze" should not be used in engines, where there are aluminum parts - radiators, cylinder heads and pumps. "Antifreeze" does not protect the aluminum, which leads to premature failure of the already mentioned items. In addition, the "Antifreeze" according to the type of additives related to silicate antifreeze, ie creates a protective layer on the entire inner surface of the cooling system. This layer can reach 0.5 mm, which seriously degrades the thermal conductivity. In addition, additives quickly activated, as they require a lot. I have already mentioned that the aluminum silicate antifreeze is not protected, but now virtually all automakers are actively using the "winged metal" in the manufacture of motors and radiators - it is lightweight and durable. It is now virtually no available copper radiators and cast iron cylinder heads. Incidentally, the cast iron pump is now a rarity, too. So if you have not Kopeyka or Iz-412, a foreign car, released even in the early 90-ies, see the instruction manual - the information you need is contained there. Modern antifreeze called already carboxylate, and an additive package there are several other. Most importantly, he is well protected aluminum parts and has also other important advantages - not covered within the entire system, but only space corrosion (which improves the thermal conductivity). Accordingly, additives triggered much less, and changing it can be much less. Well used during the whole lifetime of the vehicle recommended antifreeze the same manufacturer. Even fluids that have the same class but manufactured by different firms may have an incompatible additive package. Topping up the road, even the usual G12, but another brand, can seriously undermine the health system. Incompatible additives will fall in the sediment, will no longer perform their functions, in addition, this residue will prevent the normal circulation of coolant. By purchasing a used car, it is better to replace all process fluids, including coolant. Who knows what is uploaded? Washing is best carried as follows: completely drain antifreeze, including the cylinder, fill with distilled water and starts the engine. Need to wait until the engine will be released at the working temperature and the thermostat opens. After that, drove the motor at different speeds, the liquid to drain. To be sure, the operation can be repeated again. Distilled water is not particularly expensive, so save here is not worth it. Bay for the first time in the coolant system, to monitor its level. Rubber tubes better mash your hands to remove air. In the first level of travel may be somewhat reduced. Firstly do not panic. Maybe, just antifreeze take its rightful place, supplanting while driving airlocks. If further fluid continues to decrease, you need to attend to system integrity. By the way, the sealant - is not an option, and an emergency vehicle to get to the place of repair. Repairs carried out by replacing nozzles and other parts as well as tightening clamps, if you're lucky. Summarizing, we can say that the cooling system, as well as any other system of a modern car requires periodic inspection and maintenance. Also keep in mind that older cars need to monitor the system more thoroughly.
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