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 bars permanent head gasket stop leak
IronTite Red Ceramic Motor Seal..
I have worked with guys that got positive results from Blue Devil sealant



Some say that K-Seal ULTIMATE is the best additive for repairing head gasket leaks. 
It can be used in hot or cold engines and is not affected by other additives in the cooling system. To use it, you can:
  1. Shake the bottle for 30 seconds
  2. Pour it into the radiator, expansion tank, or header
  3. Start the engine 
    K-Seal
    K-SealĀ® ULTIMATE - Best Head Gasket Leak Repair - K-SealĀ®
Other head gasket sealers include:
  • K-Seal ST3501
    A pour-and-go sealer that can permanently fix cracked heads, blown head gaskets, and blocks
  • BlueDevil Head Gasket Sealer
    Can repair and seal leaks in warped or cracked heads, heater cores, and blown head gaskets
  • NoLeaky
    A product that can address cooling system leaks and damaged head gaskets
  • Bar's Leak Head Sealer
    A product that ChrisFix tested for 2 years and 10,000 miles and found to work well 
Some signs that a head gasket may be damaged include: Engine misfiring, White exhaust smoke, Cooling system issues, and Car overheating. 
The length of time a head gasket sealer lasts depends on the extent of the damage. 
Generative AI is experimental.