K&W Trans-X Stop Leak & Tune-Up is an effective solution to seal and repair leaks in automatic transmissions, power steering & hydraulic systems. It helps to prevent premature failure, extend transmission life, and as a result reduces the repetitive vehicle repair tasks. The premium-grade transmission stop leak stops slips, fixes leaks, and protects against future wear caused by aged seals & gaskets. Trans-X provides long-lasting performance with its powerful cleaning agent to remove sludge, gums, & varnish freeing valves for proper shifting. Follow the safety handling and storage instructions on product label for proper handling.