Hello!
I've got an -08 Legacy Wagon and recently it has started to make a strange noise. The noise is like a whine or humming and it happens when accelarating or coasting. I have the four speed automatic and the noise is present on all gears but it starts to become noticeable when I go over maby like 50km/h. Also the noise seems to be louder when I start driving and becomes more quiet after a while but doesn't fully go away. The noise does go away however if a put the car on neutral. The car is due to transmission oil change soon but can it be only that? Patient in photo.