Liqui Moly Hydraulic Lifter Additive is a high-quality German-made engine additive designed to clean and optimize hydraulic valve lifters. This 300ml solution helps reduce valve noise and restore proper valve operation in vehicles. Key features: • Made in Germany • 300ml bottle capacity • Cleans hydraulic valve lifters • Reduces valve noise • Optimizes valve operation • Compatible with all commercial motor oils This specialized additive from Liqui Moly is formulated to address hydraulic valve lifter issues in automotive engines. It works by cleaning deposits and ensuring smooth operation of the hydraulic valve train system. The product comes in a convenient 300ml bottle with clear application instructions. For best results, add to engine oil according to manufacturer specifications.