After starting, pay attention to check the oil pressure. When a diesel engine runs at an idle speed, engine oil pressure should be no less than 0.1Mpa (1 kgcm2). Check the oil surface of the oil pan for a new-assembly diesel engine after starting 5 minutes. Add the engine oil in-between upper and down marks of the oil scale, when necessary. https://www.ruitrailer.com/products/girder-carrier/