Transmission oil selection

Hello friends, I have a 2004 model gasoline 307, I think I will change the oil of my vehicle.

no friends with knowledge

If you put a full synthetic 75w80 in your Peugeot transmission, if you put it in reverse gear, it knocks and knocks.
There is only one transmission oil approved by Peugeot.
It is also a 75w80 transmission oil.
You can see the confirmation codes by peugeot and citroen on the back of the box.
This oil is synthetic oil. This is the appropriate one.
Fully synthetic and avoid any additives.
No need for extreme things.

well thank you for sharing your information