BlueDevil Products Oil Stop Leak

Excelente sellador de fugas de aceite, lo envié a 2 talleres no encontraron la fuga y lo probé y al momento se detuvo la fuga, seguí las instrucciones estoy feliz me ahorre un buen dinero.

BlueDevil Oil Stop Leak worked exactly as advertised after a leak recently appeared in my valve cover on a 1998 Toyota Sienna with 455,000 km. After changing the oil, filter and adding BlueDevil I drove the car for 3.5 hours. I have used Amsoil 5w30 synthetic oil for many years without any noticeable oil leaks. I will now change my Amsoil more frequently 3 or 4 times a year as opposed to 2 times per year. Also I will only use Amsoil, because Amsoil is a better synthetic than many other synthetic oils. Very pleased with BlueDevil oil stop leak which stopped the leak. This was the first time I used BlueDevil and am very pleased.

Added this to my car that had oil leak and it worked for a few weeks but then started leaking again . Did not fix problem it may have slightly improved but leak is still there . I was septic from start but gave it a try .

The product worked as advertised

Worked shocked seal was weeping on a timing chain cover stuck it in and bang no not the engine and the weep had gone