2008 Honda oil drain bolt size?
 

I'd like to change 2008 honda civic oil myself.































I have a wrench but need a cap to fit to the oil drain bolt zise.































Anyone knows what is the bolt size?















I'd like to change 2008 honda lx civic oil myself.































I have a socket wrench but need a cap to fit to the oil drain bolt zise.































Anyone knows what is the bolt size?