Many motorists know thatToday, there is a certain list of accepted methods, according to which the classification of motor oil by its quality and various performance characteristics is carried out. But in fact, it happened so that the majority of car manufacturers do not have this, so they decided to invent their own engine oil tolerances, certifying them for certain types of engines. At the same time, car owners often do not even know what this classification is and why it is needed.
In short, engine oil tolerancesrepresent a specific quality standard for which a complete list of parameters set by the manufacturer of the car is determined. Compliance with these requirements is mandatory when using those or other products in your engine.
The process of assigning tolerances is enoughdifficult, and in order for the manufacturer to obtain the right to indicate on the label a specific value of a particular manufacturer, the company must first obtain the appropriate certificate. In turn, the car manufacturer initially had to conduct quite complex tests of the product obtained, as well as analyze it in a special laboratory, and only then establish their own motor oil tolerances. Naturally, the company that will manufacture the final product pays for all these procedures, and the amount of such payment is quite large.
Information on which engine oil tolerancesassigned to a particular product, must be present on its label, and if it is absent, it only says one thing: the oil you buy has not been certified, even if the seller insists on the opposite.
The first such standards were introducedbecause of the fairly tough competition in the markets of modern cars, and one of the first to come out was engine oil with Ford tolerances. Such competition has come far from a sudden and has existed for several years already, and throughout this time most of the concerns are doing everything to keep their customers and, naturally, attract new ones. In order to achieve their goals, companies are extremely rigidly positioning their own products on a variety of parameters, in particular, this applies to engines.
For example, a certain manufacturer declaresthe high speed of their cars, while the other highlights economy as an advantage, and the third positions their cars as powerful and passable cars. Nevertheless, each of them produces its own line of engines, ranging from the thrifty and the weak to the fast and high-torque.
Naturally, such an approach hasdirect influence on the production procedure, and in particular it concerns engines. Different manufacturers use different technologies, and they are mainly dictated by the way a particular car brand is positioned, in connection with which engine oil appeared with tolerances of Ford, BMW, Lexus and other manufacturers. Different companies also use different materials in the production of internal engine parts, and this is mainly the effect on the chemical characteristics of the final product and is directly related to the interaction of the additives contained in the selected oil.
Since the additives are all used different, inin the end, it turns out that absolutely identical products can be excellent for one engine, but at the same time it is extremely destructive to affect the operation of another motor. That is why any competent specialist will say that there are no good and bad motor oils, just all of them are different and are intended for different engines or operating conditions.
In addition, the critical value in thisThe case has the thickness of the film formed by the oil on the internal components of the car, since some additives deal specifically with its adjustment. If this thickness exceeds the clearances set by the manufacturer, this will lead to permanent overheating of the piston group and all the ensuing consequences. If the value is less, the oil will simply burn out too much.
It is for this reason that most automotivemanufacturers prefer to develop their own standards and requirements for each individual engine model, in connection with which there were engine oils with the approval of Dexos2 and many others. According to the applications of the manufacturer of these products, a certain list of necessary tests and studies is carried out, according to the results of which specific brands may be allowed to be used in certain engines. All this must necessarily be issued in the form of a certificate, in the presence of which the oil manufacturer is entitled to indicate on the label a specific approval.
It is worth noting the fact that with the broadestdiversity of products on the modern market, as well as taking into account the number of structurally different engine models and their manufacturers, reinforcing the oil tolerance with a vehicle manufacturer’s certificate is a fairly serious argument for its use. And vice versa - if this certificate is not available, the use of such oil in a particular car becomes quite risky.
The list of tolerances car manufacturersMust be located directly on the label immediately after the information about the viscosity it has and to which the ACEA and API quality classes belong. If the tolerance you are interested in is not indicated on the label, it means that this oil definitely does not have it. Below we give only a brief description of what the VAG tolerances are. Engine oil may have different characteristics, and for the most accurate determination of the specific engines it is best to first check with the documentation for the car or contact the official representative:
Considering the tolerances of motor oil "Mercedes", it is worth to highlight a few basic ones:
В соответствии со спецификациями концерна BWM, for vehicles of all series equipped with gasoline engines, only those engine oils that have previously passed a special set of tests and have the status of officially approved by the company can be used. These cars with diesel engines provide for the use of universal oils, if they meet the requirements of specific classes according to the specification. The basic tolerances are as follows:
There are also many other options:diesel engine oils with a tolerance of DH 1, GM-LL-A-025 and a number of others, but in this article we outlined a list of the basic tolerances of the most popular car manufacturers.
Таким образом, для каждого конкретного автомобиля and a certain brand of engine, you only need to select the oil that has the appropriate tolerance, because otherwise you risk the safety of your vehicle.
