The lubricating oil for heavy-duty vehicles is easily oxidized to produce oxides, and then carbonized substances are attached to the piston ring groove and other parts of the engine, hindering the normal operation of the engine, so diesel engine lubricating oil must have good oxidation stability. A good clean and dispersible diesel engine lubricating oil will inevitably be mixed with water vapor generated by fuel combustion, nitrous acid gas generated from nitrogen oxides, carbonized products generated by incomplete combustion, and unburned gas leaking from the combustion chamber. If the substance is not dispersed in time, sludge will be formed. In severe cases, it will form paint-like polymer attached to the engine and cause mechanical failure. Therefore, the cleaning and dispersion effect of diesel engine lubricating oil directly affects the working quality of the engine. Good anti-corrosion performance Diesel engine lubricants must have excellent acid neutralization and anti-corrosion properties to prevent oil aging caused by water and acidic substances generated due to various reasons, and corrosion and wear of cylinder liners and piston rings, etc. The situation arises. Good anti-wear performance Lubricants with good anti-wear performance can form a sufficient oil film to reduce the wear of multiple metal-to-metal contact parts in the engine such as camshafts and rocker arms, pistons and piston rings, piston rings and cylinder liners, etc. Extend the service life of the engine. Good defoaming performance If the defoaming performance of diesel engine lubricant is not good, many bubbles will be mixed in the lubricant delivery system, which will not only cause poor lubrication of the bearing, but also cause oil pan oil, misreading the amount of oil and other problems. , Affect the normal operation of the engine, so diesel engine lubricants must have good defoaming performance.
The main function and performance of gear oil for heavy-duty vehicles. The main function of gear oil for heavy-duty vehicles is the anti-wear and anti-pressure effect. As the load of heavy-duty vehicles is relatively large, the load of the gear transmission system is also relatively large, the working conditions are more demanding, and the extrusion wear of gears and various bearings More serious, this requires that the gear oil for heavy-duty vehicles must have a good anti-friction and anti-pressure effect. Anti-corrosion and cleaning effect The working environment of heavy-duty vehicles is generally harsh, and the gears and bearings on the vehicle are more likely to be corroded by dust and water in the environment. Therefore, gear oil must have a better anti-corrosion and cleaning effect. Auxiliary heat dissipation. Since most parts of vehicle gears and bearings do not have cooling systems, gears, bearings, etc. will generate more heat during the process of biting and rotating, especially in the case of bad road conditions or heavy loads. If it cannot be discharged in time, serious mechanical failures are prone to occur. The use of gear oil can increase the heat capacity of the used parts and help the heat dissipation.
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