The Castrol Hyspin™ HVI range of high viscosity index (VI) oils is based on a carefully selected ashless (zinc free) additive system designed to meet and exceed the most exacting performance standards.;Advantages;High viscosity index and low pour point enables the product to be used over a wide temperature range.;Good shear stability means no excessive loss in viscosity due to mechanical shearing.;Excellent anti-wear performance provides extended wear protection for hydraulic pumps.;Reduced down time due to unscheduled maintenance and savings from replacement part costs.;Excellent water separation and hydrolytic stability means reduced down time through prolonged lubricant life and increased equipment reliability.;Excellent thermal and oxidative stability provides reliable performance and extended oil life in severe applications.;Minimal deposit formation gives a cleaner system and reduced frequency of filter changes.;Excellent filterability characteristics (including in the presence of water) enables cost savings to be made due to increased filter life.