Please use SAE 80W-90 gear oil for the gearbox. It is very important not to use engine oil or the fuel-gasoline mixture, as the gearbox requires a specific lubricant designed for the tine gear reduction system.To ensure the longevity of the machine, please note: "Adding oil every 2 hours" refers to **checking and topping off** with a small amount of grease, rather than changing the entire supply of lubricant. If the oil level is sufficient, there is no need to add more every time.
By vevor