Specially formulated oil additive designed to revitalize old, tired oil seals and gaskets that have shrunk due to age, temperature or wear. Concentrated Engine Stop Leak is a petroleum product formulation. It will not plug oil filters or clog vital engine oil passages.
Use it to seal pan gaskets, valve cover gaskets, timing gear covers, front and rear main bearings and all other engine oil seals.
Concentrated Engine Stop Leak is compounded to be compatible with all types of sealing and gasketing materials used in automotive and heavy equipment engines, gas or diesel.
- Add To Oil
- Will Not Harm Catalytic Converters Or Oxygen Sensors