Power Steering Stop Leak Case/12-12oz

The Lucas Oil Power Steering Stop Leak Case of 12 bottles (12 oz each) is a professional-grade fluid treatment designed for mechanics and vehicle owners who need reliable power steering system maintenance across multiple vehicles or fleet applications. Power steering fluid degradation and minor seal leakage are common issues in both older and newer vehicles, particularly as seals age and internal wear accumulates. This bulk case format makes it ideal for shop technicians, fleet managers, and serious DIY enthusiasts who service multiple units regularly and want consistent, proven results without repeat ordering.

Lucas Oil formulated this stop leak additive to work with existing power steering fluid without system flushing or fluid replacement, conditioning elastomer seals and gaskets to reduce seepage and internal leakage. The treatment thickens slightly over time to fill microscopic gaps where seals have compressed or worn, while conditioners restore seal flexibility to prevent hardening and cracking. Each 12 oz bottle treats a typical power steering system effectively, and the formula is compatible with most OEM and aftermarket power steering fluids—critical for mixed-fleet shops where fluid specifications vary by manufacturer and model year.

Professional technicians benefit most from the case quantity when servicing commercial fleets, rental car operations, or high-volume independent shops where preventive maintenance prevents catastrophic power steering failures and the expense of full system rebuilds. Installation is straightforward: add one bottle directly to the power steering reservoir at operating temperature and run the engine through full-lock steering cycles to distribute the additive throughout the system. Results typically appear within 50–100 miles of normal driving as seal conditioning takes effect, making this a cost-effective alternative to seal replacement for minor weeping and early-stage leaks.