it's right at the corner on the driver side underneath of the radiator,usually it's a win plug.

 

Yes and you have to give it a quarter turn counter clockwise and pull out on it.

 

And if you have issues with it, leave it be and just pull the lower radiator hose. It will also drain much faster this way.

 

Thank you for all the info for a successful radiator flush..... especially about the win plug and the lower radiator hose idea.

 

Unless it is made in Spain

Then it is on the right side, Passenger side at the bottom. For two weeks I have been finding that it is one the left side under the filler cap. Believing this it has cause a lot of fustration