If it's the "oil" drain plug, the size wrench is, better yet use a socket wrench=13mm.
The wrench size is 14mm.
The original engine oil drain plug wrench size should be 15mm.
If the drain plug is original equipment, it takes a 17mm wrench or socket.
The wrench size should be 15mm.
Mine is 12mm wrench, but some are different.
It should 14 mm wrench.
The wrench size should be 15mm.
The size wrench to remove it should be 15mm.
13mm
19mm
17mm 17mm