• New forklifts: It is recommended to change the oil for the first time after 50 hours of operation (initial break - in period). After that, for regular maintenance, the frequency varies. Usually, manufacturers suggest an oil change every 200 hours of operation. However, if the forklift is idle for a long time (with a high idle rate), it's advisable to change the oil every half a year, or check the oil regularly to decide the change time.

• Influencing factors:

• Working conditions: If the forklift operates in harsh environments (e.g., dusty, high - load sites like mines and construction sites), check the oil cleanliness regularly and shorten the oil change interval if necessary, as dirty oil can damage the engine.

• Oil quality: Using high - quality synthetic oil may allow for a slightly longer oil change interval compared to mineral oil, but still follow the manufacturer's basic recommendations.

In short, refer to the forklift's instruction manual first. And regularly check the oil level, color, and viscosity (e.g., if the oil turns black and loses viscosity prematurely, change it in advance) to ensure the engine runs well and extend the forklift's service life.