The Lucas Oil Hydraulic Oil Booster / Stop Leak is designed to stop and prevent leaks. It is a blend of petroleum-based oils and additives that help to reduce wear and tear on hydraulic components, while also providing superior protection against rust and corrosion. It is designed to be used in all types of hydraulic systems, including those with high-pressure and high-temperature applications. This product is a must-have for any hydraulic system and is sure to keep your equipment running smoothly and efficiently. FleetPride is your First Click in Heavy Duty®.