Universal power steering fluid. Hi-Gear POWER STEERING FLUID STOP LEAK & CONDITIONER with SMT2. Sealant and conditioner. It is used to prevent and eliminate leaks in power steering caused by possible tightness loss (drying, hardening) of sealing elements. It helps in extending the service life of hydraulic pumps and actuators of power steering. It eliminates most small leaks through power steering seals. It has excellent anti-corrosive properties. It can be used as a working fluid for power steering mechanisms.