10 popular myths about motor oil


1.    If the oil is dark, then it is necessary to change it, regardless of the mileage of the car. In fact, cleansing additives dissolve incomplete fuel combustion products, keeping the engine clean and protecting against contamination, so oil and darkens.
2.    It is possible to "on the eye" determine the period necessary for oil change. You should adhere to the periods recommended by the manufacturer of your car.
3.    It is necessary to adhere to one interval of replacement of motor oil for all types of transport. If, for cars of different brands, the dates of oil change can be approximately the same, then for commercial vehicles it is necessary to calculate periodicity taking into account the operating mode.
4.    It is not necessary to change the oil regularly. In fact, if you skip only one oil change, the deposition in the engine will be much more intense, which will result in deterioration of the lubricating motor and slow down the oil circulation, which can cause an increase in engine wear, as well as its possible breakage.
5.    The oil is more expensive, the better it is. Even the most expensive oil can be harmful if it does not meet the requirements of the manufacturer of the car, so the main criterion when selecting a motor oil should be not the price, but the instructions in the operating instructions.
6.    Synthetic and mineral oils have no significant differences. Mineral oils are rapidly oxidized and lose the main characteristics of operation. Synthetic oils are much more resistant to temperature conditions and maintain their operational properties for a much longer period, which is the main reason for their use in cars with increased interservice intervals.
7.    For cars of the early year of release only mineral oils are suitable. This mistake is associated with the fact that when synthetic oils only appeared on the market, when they were poured into a car, drivers spotted the oil under the car. The explanations of such cases are very simple: the oil, getting into the engine, begins to actively interact with it, effectively washing the contaminants accumulated everywhere, including the location between the shaft and the gland. As a result of deep cleansing, the gap between them increased, and the engine oil began to flow out.
8.    All season oil is worse than seasonal. There are no differences, especially since the largest manufacturers begin to offer on the market only all-season oils.
9.    It is impossible to test the quality of motor oil at home. There is a method that determines the suitability of the oil. Put a drop of oil on a newsprint, and it will blur, leaving the concentrated circles. If the drop steadily keeps its shape - then the oil is time to change.
10.    Diesel engines require more frequent oil change. The decisive factor is the quality of fuel for a diesel engine. If it complies with European standards, it will often not be necessary to replace oil.