Uh-oh, seeing coolant mixing with oil or white smoke from the exhaust? Might be a head gasket issue. Before you panic about a huge repair bill, try Blue Devil's Pour-N-Go Head Gasket Sealer. This stuff is a quick DIY fix that you literally just pour into your cooling system. It's designed to seal small leaks in the head gasket and cooling system. Brand is BlueDevil, made in the USA. It's a performance/classic part that can save you hundreds in mechanic costs. The item is new, and it comes as a head gasket repair kit. Now, fair warning - this is for smaller leaks, not completely blown gaskets. But for early signs of trouble, it's worth a shot! Follow the instructions carefully. Could get you back on the road without the massive repair. Every car owner should have this in their emergency kit, honestly.