Posts Tagged: stop leak

Radiator stop leak products — Do they work?

Radiator stop leak products don’t work on large leaks and they can cause much bigger problems Just about every day I see a question from forum participants asking if stop leak additives work to stop cooling system leaks. Without fail, all the other contributors jump on the poster and tell them not to use it because it clogs up everything. That can happen if you don’t follow the direction to a “T.” But there are many cases where coolant stop leak does work. So let’s talk about when radiator stop … Read More