Let’s begin with the guideline that is the most self-explanatory in this situation: if your head gasket has a leak that is either light or moderate, a good head gasket fix product will unquestionably be able to seal the leak. However, if your head gasket is severely damaged, with big leaks, quick overheating, or multiple symptoms, it is possible that any chemical head gasket repair will not work on it since the damage is too far gone. It’s a simple matter of physics.
There are certain cases of head gasket leaks that just cannot be repaired using a chemical head gasket sealer. These cases can be rather frustrating. For instance, there is no chemical technology that can be used to manufacture a solution that would securely seal an oil to combustion leak or an oil to external head gasket leak. Both of these types of leaks are quite common.
Therefore, the key is to discover the leak in your head gasket at the earliest feasible stage. If you are able to detect the damaged head gasket leak in its early stages, there is a very good possibility that you will be able to repair the leak by using a blown head gasket repair sealant.
If you find the leak in your head gasket early enough, using a chemical sealer to stop it will almost surely extend the life of your car. They will also save you a significant amount of money, as the entire repair for the majority of head gasket breaches costs between $1,500 and $3,000.
After applying a head gasket sealer, continue to inspect the vehicle for signs of leaks and any other abnormalities for approximately one day. Overheating will no longer be an issue once the sealants have been applied, therefore it will be simple to determine whether or not they have been successful.
If your vehicle can run for 15 to 20 minutes without overheating, the leaking head gasket problem you are experiencing is probably one that can be fixed with a high-quality chemical repair solution. This is the general rule that we normally recommend to customers. If your vehicle warms up more quickly than usual, the problem with the damaged head gasket may be too serious. Because of this sad circumstance, it is likely that a complete replacement of the head gasket is required.