Bar’s Leaks Super Leak Fix, No. 1305, is designed to quickly seal, stop, and prevent leaks in any engine, transmission, power steering, hydraulic or differential/gear system. Its unique formula includes seal-renewing additives that solve seal and gasket leaks caused by normal wear without clogging filters or harming the system. It’s a single-bottle solution that’s easy to install with included spout and fill hose at the first sign of any trouble to prevent future damage. Super Leak Fix’s multi-system formula can be installed in engine oil, transmission fluid, hydraulic fluid, or gear oil.