I'm pretty sure all the Nissans these days have drain plugs that come out with a 14mm wrench. Off hand I can't think of anything gasoline fueled and less than 20 years old that uses a fractional size for an oil drain plug, although a 5/8 inch is probably a close enough approximation to a 16mm to work on Fords and a very worn 3/4 inch might work on a worn 19mm on a VW.