In what condition should the hub axle oil be during inspection?

The hub axle oil should be properly filled and not leaking during an inspection. This is crucial because the hub axle oil lubricates the bearings and other moving parts within the axle assembly, ensuring smooth operation and preventing excessive wear and tear. If the oil level is too low, it can lead to overheating and increased friction, which may cause serious mechanical failure. Furthermore, any leaks would indicate a potential problem that needs to be addressed immediately to avoid costly repairs and ensure safety while driving. Thus, maintaining the correct oil level and ensuring there are no leaks is vital for the overall performance and reliability of the vehicle.