whats the drain plug size??? for the oil pan???

 

dunno off hand, just start trying bolts

 

17mm i got it..

 

You talkin thread size or wrench size? Unclear. I do know it's metric andI see you got it what ever it was.
You should be changing the tranny fluid about once a year too if you haven't. That would be a 6 mm internal wrenching (aka allen style) plug.