How often do long-distance freight trucks change oil? What maintenance items must be done regularly?

The oil change cycle of long-distance freight trucks varies according to the type of oil used and the actual operating conditions of the vehicles. If ordinary mineral oil is used, it is generally necessary to change the oil every 20,000 kilometers; In the case of synthetic engine oil, the replacement cycle can be extended to 40,000 kilometers. Of course, it can even be replaced once every 60,000 kilometers, which has long service life and can better protect the engine. In addition, the maintenance of trucks is not only as simple as changing oil, but also requires regular replacement of air filter, diesel filter and machine filter. The replacement cycles of these components are 12000 km, 15000 km and random oil change respectively. In addition, for long-distance freight trucks, regular tire maintenance and brake debugging are also important maintenance items that must be done. Therefore, the maintenance of long-distance freight trucks should be comprehensive and meticulous to ensure the good running state of the vehicles.