How often should the generator oil be changed?

[McWyatt]

Different diesel generator manufacturers and different power diesel generator sets use different oils. If you want to accurately understand the replacement time of diesel generator sets, here are two methods to determine when to change the oil: 1. Use two glass test tubes with a diameter of 0.5 cm and a length of 20 cm, fill them with 19 cm of new oil and used oil respectively, seal them, and invert both tubes at the same time. Record the time it takes for the bubbles to rise. If the difference exceeds 20%, it means the viscosity of the used oil has decreased too much and should be replaced. 2. Drop one drop of new oil and one drop of used oil onto white filter paper for comparison. If the used oil drop has many black spots, it indicates the oil has not deteriorated and should not be replaced; if the oil appears dark brown, it has deteriorated and should be replaced.