Learn how to choose the right stop leak additive for your car's oil leak problem Discover the truth about engine oil stop leak products and whether they work Compare 10 products based on leak location, compatibility, and effectiveness.
O is for Oil–A to Z Blog Challenge – Story Crossroads
Stop leak additives work best in clean oil
If your engine oil is black, gritty, or has been in the crankcase for 7,500+ miles, drain and replace it before adding the stop leak product.
