The oil level of the transmission can be seen through the transmission with an oil dipstick, and the oil level of the transmission can be seen through the scale on the oil dipstick.
To check whether the oil level of the transmission is normal, you can also judge whether the oil level is normal through the observation screw on the side of the transmission. If the screw is unscrewed, the transmission oil flow is normal. The transmission oil level can be judged by the dipstick.