Just wanted to confirm that this is the coolant drain plug on the engine:

Also, I'm going to buy some NAPA brand antifreeze for the job, should that do the trick? I know a lot of you recommend using Mopar brand from the dodge dealership. The dealership is close to NAPA so it won't be much of a hassle to pick some up, just might be a little more expensive ($22 for 4 litres). Is the Mopar stuff really that much better?
Thanks
- Jason