How to change Automatic oil I cannot see plug (bolt) to drain old oil,on KIA Rio car?.?

If you mean transmission fluid, you won't find a drain plug. The transmission pan is removed to drain the fluid, and at the same time, a new filter should be installed. Reassemble the pan using a new gasket.How to change Automatic oil I cannot see plug (bolt) to drain old oil,on KIA Rio car?.?
HOLD ON !! Kias take a special type of trans fluid that only comes from a Kia, Hyundai or Mitsu dealer. PLEASE Check the owners manual. Then. There is a drain plug on the bottom of the transaxle. It is a 12mm allen head bolt. It is on the drivers side, towards the rear and goes in horizontal, sideways. Google image Kia transaxle drainplug.How to change Automatic oil I cannot see plug (bolt) to drain old oil,on KIA Rio car?.?
I'm surprised it doesn't have a drain plug. Hondas, Toyotas and Subarus have them. But since it's Korean, it may not. This is a major mistake by the American auto makers, there should be a plug. It is inferior engineering not to have one.
The pan has to be removed and the filter needs to be changed at the same time.