river and Tenn,
There is a protective oily coating that is used to prevent the pipes from rusting when stored or shipped. This is used quite frequently in industry. It will burn off as you've stated and doesn't hurt your car or exhaust. I hope this helps you out.
Joe
There is a protective oily coating that is used to prevent the pipes from rusting when stored or shipped. This is used quite frequently in industry. It will burn off as you've stated and doesn't hurt your car or exhaust. I hope this helps you out.
Joe