Yamaha 60ml Regular Synthetic Valve Oil is a 100% synthetic lubricant designed for consistent performance across all piston-valve brass instruments. It features a medium-viscosity formula, making it the standard all-around choice for students and professionals alike. Key Product Details Viscosity & Performance: The regular formula offers a light, quick touch with smooth, long-lasting action. Its synthetic nature means the molecules are of uniform size, allowing it to evaporate evenly and resist gumming or sticking better than traditional mineral oils. Protection: Contains a powerful corrosion inhibitor that protects valves and casings from the harmful effects of moisture and saliva, extending the life of your instrument. Temperature Stability: Unlike mineral-based oils, this synthetic formula remains stable and consistent in various ...