How many liters of transmission oil are required for a full refill after completely draining a 2013 4x4 Mazda BT-50 automatic transmission?

 

You fill and check, add as needed to fill. I do not recommend you go by the amount as in almost every case it will either over fill or under fill your UNIT if it be transmission, engine oil, differentials etc.
The only use the amount indicated is best for IMHO and how most all service shops (even dealership service departments) use the quantity info or charts is to make sure that they at least have the amount needed (maybe a little more) for the service.

If you look on many platform forums there is always a debate on the amount used and numerous responses how when using the quantity specified for the service, they are either too much or not enough. And NO the dip stick is not to blame maybe the "dipstick" doing the oil level check???

 

Can you provide a guide on how to check the transmission oil level? Is it when the vehicle is running or when it is off?

 

Check the ATF with the engine running after achieving ATF temperature of 60`c.

 

any updates ?

 

What update are you looking for?