Rational classification of engine oils

Rational selection of engine oils is essential for the continuous operation of the engine of any car. Therefore, this event should be given special attention.

Today, there are a huge number of different classifications of motor oils. The main parameters that underlie them are the following:

• Type;
• Strength;
• Quality.

The Most common among all is the classification of motor oils according to their type:

• Mineral engine oil. A big advantage is relatively low cost. It should be remembered that the range of use of these oils is not very wide. Production is carried out by mixing the residual and/or distillate oils.
• Synthetic motor oil. The main advantage is the ability to use almost in any situation. That's just the cost of them is quite large. This is because in the manufacturing process are used high-quality components and sophisticated equipment.
• Semi-synthetic motor oil. Their use is very beneficial for both the car and its owner. Such motor oils are relatively inexpensive, and helps reduce fuel consumption, and also have good performance. They can be used in all types of engines.

The Fairly common classification of engine oils according to their viscosity (SAE classification). According to this indicator, they are divided into the following types:

• Winter;
• Old;
• All season.

Marking of engine oils winter is carried out with the use of the letter "W" (0W, 5W, 10W and so on). The higher the number before the letter, the higher the viscosity. As for year of motor oils, and they are marked by numbers alone similar. Multigrade oils have 2 numbers in your full name. The first of them shows the oil viscosity at low temperatures, and a second dynamic viscosity at 150^OC and kinematic at 100^OC.

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Apparently, the most difficult is the classification of engine oils by quality. Its Foundation was laid in 1947, when the so-called API-graduation. She supplemented many times. Modern classification of this type dates back to 2001. According to her, all engine oils are divided into 2 broad categories:

• Service: includes 9 classes;
• Commercial: includes 10 classes.

All the engine oil from the category servise is intended for use in those engines that operate on gasoline. As for commercial oils, they are designed for diesel powertrains.

There is still 1 classification of engine oils in terms of quality - ACEA. She shares all kinds of oils into 3 groups: A, B, and C. the First of them includes 3 types: A1, A2, and A3. They are designed for engines running on gasoline. The second group is divided into 4 types: B1, B2, B3 and B4. Such engine oil is commonly used in light diesel engines, which are installed on passenger cars and vans, manufactured on their base. The third group also includes 4 types of oils: C1, C2, C3 and C4. They are used in heavy diesel engines which equip freight cars.