The lowest standard for selecting oil is to determine the use of the corresponding quality grade oil according to the requirements of the automobile instructions. Higher grade oil beyond this level can replace low grade oil, and low grade oil can not replace high grade oil.

The correct selection of 1. steam oil

The rational selection of engine oil is based on the heat load and mechanical load of the engine. Oil with different quality grades and different viscosity grades were selected as well as climate conditions.

(1) according to the engine's compression ratio and additional device, the quality grade of gasoline engine oil is selected: the larger the heat load and the mechanical load of the engine, the higher the quality of the engine oil is. If a turbocharged engine is installed, the quality of the oil is higher.

(2) according to the selection of steam engine oil viscosity grade working environment temperature: winter cold areas should use oil, low viscosity such as 5W/20; summer year or in the area of high temperature steam engine oil viscosity should be chosen appropriately high some, such as 15W/40 oil, the general models can apply throughout the year.

The correct selection of 2. diesel oil

The reasonable selection of diesel oil is to determine the quality grade of the diesel oil according to the strengthening coefficient of the Mercedes Benz engine in the north of Baotou.

(1) the heat load and mechanical load of diesel engine are indicated by the enhancement factor K. The larger the load of diesel engine and the higher the working temperature, the higher the working intensity and the more intense working intensity of Baotou North Mercedes accessories. The higher the quality level of diesel engine oil is, the higher the quality level of diesel engine oil is.

(2) according to the ambient temperature of Baotou North Mercedes spare parts engine, choose the viscosity grade of diesel engine oil. The choice of diesel oil viscosity grade is the same as that of gasoline engine oil, and it should be selected according to the ambient temperature.