AMSOIL Industrial Helios Zinc-Free 15 Hydraulic Oil (previously known as Eclipse Syn 15) is engineered to provide extended oil life and exceptional corrosion and wear protection for hydraulic pumps and motors in a wide range of applications and operating conditions.

• Superior thermal and oxidative stability reduces varnish, sludge and deposits to maintain system cleanliness and performance.
• Extreme-low-temperature startup protection and extreme-high- temperature wear protection for long pump and motor life.
• Extensive seal, elastomer and metal compatibility, including bronze.
• Zinc-free anti-wear technology for improved environmental profile.
• Highly compatible with most zinc and non-zinc hydraulic oils.
• Superior hydrolytic stability and demulsibility for improved filterability.
• Inhibits foam to reduce sponginess and improve responsiveness.
• Inhibits rust and corrosion for maximum component life.