If your coolant level keeps dropping with no visible external leak, the coolant may be entering the engine or combustion system through an internal leak. A blown or leaking head gasket is one possible cause. If testing confirms a head-gasket leak and the damage is suitable for a chemical repair, Thermagasket may provide an alternative to expensive head-gasket replacement.

Yes. Persistent white smoke or steam from the exhaust, especially when accompanied by coolant loss, overheating, or a sweet coolant smell, can indicate that coolant is entering the combustion chamber. These symptoms can have other causes, so proper diagnosis is important before treatment.

Continuous bubbling in the coolant reservoir can indicate combustion gases entering the cooling system, which may be a sign of a head gasket or other internal engine leak. If you have confirmed a head-gasket leak, Thermagasket can be considered when the engine damage is within the product's repair range.

In many cases, yes. A conventional head gasket replacement can cost thousands of dollars because of the labor involved, while a chemical repair is substantially less expensive. Whether a sealer is appropriate depends on the type and severity of the leak, so diagnose the problem first and follow the Thermagasket application instructions carefully.