1. Selection of diesel oil: diesel oil can be divided into light diesel oil and light diesel oil. Agricultural tractors generally use light diesel oil. It is generally divided into light grade, - 10, - 20 and so on. In order to save money, in the vast areas of Jilin Province, in addition to the - 35 diesel oil that is used for transportation in the cold winter, No. 0 and - 20 diesel oil are generally used for agricultural production. No. 0 diesel oil is used in summer and No. 11 diesel oil is used in winter. Other areas can choose the right number of diesel oil according to the local specific temperature.

2. Selection of engine oil: Agricultural diesel engine needs diesel engine oil. Diesel engine oil is divided into No.8, No.11 and No.14. Dongfanghong tractor parts manufacturers said that they generally use No. 8 engine oil in summer and No. 11 engine oil in winter.

3. Gear oil selection: gear oil is divided into 20 and 309 two kinds. 30 in summer and 20 in winter. Here, we remind the maintenance owners that it is strictly forbidden to use engine oil instead of gear oil, or mix diesel oil and kerosene in gear oil, so as to avoid reducing its viscosity, weakening its lubrication performance and accelerating gear wear.

4. The choice of butter: the choice of butter for diesel engine should not be "one size fits all", but should be based on the various components of the diesel engine.