High-temperature-resistant precipitation antagonist

The invention discloses a high-temperature-resistant precipitation antagonist, which belongs to the technical field of lubricating oil preparation. The high-temperature-resistant precipitation antagonist is characterized by being prepared from the following raw materials in parts by weight: 3-5 parts of 2, 6-di-tert-butyl-p-cresol, 3-5 parts of zinc dialkyl dithiophosphate, 0.5-1 part of an anticoagulant, 0.5-1.5 parts of a dispersing agent, 5-10 parts of an ultraviolet light absorber, and the balance of base oil. The anticoagulant and the dispersing agent are added into the component A or thecomponent B or the component C in proportion; the component A, the component B and the component C are added into lubricating oil to be updated through online blending and filling equipment; and theaddition amount of the high-temperature-resistant precipitation antagonist is 0.1-0.2% of the lubricating oil to be updated. The quantitative premixing device, the nitrogen adding pulse blending device and the suction type rep