Radiator problem.

[Bitter Beard]

I recently picked up a GDI Heatbuster from AutoZone this weekend when my old radiator sprung a leak. The old one was a tiny POS that the previous owner installed, so I wasn’t going to repair it.

Anyway, I seem to be having problems with the drain plug. I grabbed a plug that screws into the radiator and has an insert that can be screwed in to drain the radiator and out to keep it sealed. My problem is since I put in the radiator and this plug it has leaked from the get go, I have to now drain the whole works to replace it. The leaking is coming from around the plug at the bottom where it meets the radiator; it has a rubber grommet attached to the hole. There was a plastic deal that came with the radiator but I thought that was just to keep the shipping funk out.

Can I toss the leaking radiator drain and use this plastic one without fear of it melting? Should I Teflon tape the plastic cap to make sure no leaking occurs? Doing a search of the forums somebody posted they were using this stock drain and was just curious if I need to buy another one.

Thanks in advance,
BB