Mannol 9923 Power Steering Leak Stop is a premium additive engineered to restore and maintain the integrity of your vehicle’s power steering system. This advanced formula rejuvenates rubber and neoprene seals, gaskets, and O‑rings, restoring their flexibility and form to prevent leaks in the pump, rack, and hoses. By reducing friction and wear, it enhances system efficiency, extends pump and valve life, and ensures smooth, quiet steering operation. Regular treatment doubles the system’s longevity and significantly reduces noise, heat, and vibration associated with aging seals. Compatible with all types of power steering fluid, it integrates effortlessly into standard maintenance routines. Trusted by professionals and automakers, Mannol 9923 offers a reliable, effective, and preventative solution for steering system health.