Lucas Oil 10278 Engine Oil Stop Leak – 1 Quart

Customers report that the oil additive works effectively to stop headgasket leaks and improve engine smoothness, particularly on Ford vehicles. The product receives positive feedback for its quality and value, with one customer mentioning it saved them $700 in gasket replacement costs. While some customers report the product stops leaks immediately, others say it doesn't work at all, and similarly, while some say it's still going strong, others report it doesn't last long.