Prestone Power Steering Liquid with Stop Leak serves as an excellent prevention treatment product to help avoid future leaks. Formulated with high quality oil and reinforced with additives to revitalize dry, shrink, and hardened seals, this power steering fluid helps stop or reduce the loss of liquid caused by the seal leakage. Compatible with factory liquid, meet the requirements of GM, Ford, Chrysler and many global manufacturers. This Formula contains multiple main ingredients to ensure smooth system operation: anti-wear materials to protect pump components; antioxidant to prevent mud formation; swelling agent seal to protect and rejuvenate seal; antifoam agent to prevent pump cavity And steering loss; corrosion inhibitor to protect metal components; and pour depressant points for good steering even in low temperatures. Keeps power-steering system running smoothly, and mixes with all approved power-steering liquids. Feature & detail Keeps the power-steering system running smoothly and helps stop or reduce the loss of liquid caused by the leakage seal Pformulated with high quality oil and enriched with additives to revitalize dry, shrink and hardened seals Developed for use in GM, Ford, Chrysler, and most foreign cars and light trucks. Anti-wear agent protects pump components Corrosion Inhibitor to protect metal components.