Hydraulic HM-68 B Group II Leak Detection (Blue)
Greyhound Lubricants Mineral Hydraulic Oil HM-68 B (Blue) is a premium line of high-quality hydraulic oils, now upgraded from Group I to Group II base oils for improved oxidation stability, cleaner performance, and longer service life. Its distinctive blue colour makes leak detection fast and easy, helping you spot leaks early and prevent cross-contamination in multi-fluid environments.
Difference Between HM and HVI Hydraulic Oils:
- HM Mineral Hydraulic Oil: A mineral-based hydraulic oil formulated with anti-foaming, anti-corrosion, anti-rust, and anti-wear additives, ensuring reliable hydraulic system performance.
- HVI Mineral Hydraulic Oil: Similar to HM hydraulic oil but with a viscosity index above 140. It is designed for hydraulic systems subjected to significant temperature variations, high loads, and extreme pressures. This formulation maintains optimal viscosity across a wide temperature range, ensuring consistent performance.
- HM Mineral Hydraulic (Group II): A higher-grade, hydrocracked base stock that replaces conventional Group I mineral oil, delivering improved oxidation stability, better thermal resistance, a cleaner appearance, and longer service life.
Greyhound™ Hydraulic HM-68 B | Group II Blue Hydraulic Oil
Greyhound™ Hydraulic HM-68 B (Blue – leak detection) is a high-performance, mineral-based hydraulic oil for industrial and mobile hydraulic systems. Now formulated with premium Group II base oils for higher quality, cleaner performance, and longer service life, its distinctive blue colour enables fast fluid identification and easy leak detection, preventing cross-contamination in multi-fluid environments. This ISO VG 68 oil combines refined Group II paraffinic base oils with a state-of-the-art additive system for exceptional oxidation stability, wear protection, and corrosion resistance.
Designed to meet the demands of high-pressure hydraulic systems, Greyhound™ Hydraulic HM-68 B delivers outstanding thermal stability, superior water separation, and excellent anti-foam properties for improved system efficiency. Its anti-wear formulation reduces friction and component wear, extending the lifespan of pumps, valves, and hydraulic components.
Ideal for hydraulic actuators, circulating oil systems, gear and worm drives, variable-speed couplings, bearing units, and sliding guides, this hydraulic oil ensures maximum protection in modern industrial and mobile machinery. Greyhound™ Lubricants are manufactured in Europe and worldwide at ISO-certified facilities, ensuring compliance with international quality standards.
Key Features & Benefits:
- Premium Group II Base Oils – Higher-grade, hydrocracked base stock for improved quality, cleaner performance, and longer service life
- Distinctive Blue Colour – Enables easy fluid identification and leak detection, preventing cross-contamination in multi-fluid systems
- High Oxidation Stability – Reduces sludge formation and extends oil service life
- Superior Anti-Wear Protection – Minimises component wear for extended equipment lifespan
- Excellent Water Separation – Prevents water contamination and ensures reliable system operation
- Outstanding Corrosion & Rust Protection – Protects hydraulic components from moisture damage
- Enhanced Thermal Stability – Maintains optimal viscosity and performance in high-temperature conditions
- Exceptional Anti-Foam Properties – Ensures smooth operation and prevents cavitation in hydraulic pumps
- Meets Specifications: ISO VG 68, ISO 6743 HM, DIN 51524-2 HLP
Additional Products
Application: Hydraulic Systems
Greyhound™ Hydraulic oil HM-22 is a trademark of a line of high-quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. The oils are formulated from selected paraffinic base stocks treated with antirust, antioxidant, and anti-wear additives. The hydraulic oil range is available in a wide range of viscosities to suit all practical requirements.
Greyhound™ Hydraulic oil is used as a working liquid for hydraulic actuators, hydraulic transmissions, and circulating oil systems of different units, low-and-moderate gears and worm gears, variable, electromagnetic, and gear couplings, bearing units, sliding guides and bearings, and other sites of the machinery of modern industrial equipment. The product does not contain chlorine compounds.
Specifications: ISO VG: 22, ISO 6743: HM, DIN 51524.2: HLP
Benefits:
- European base oils
- Superior rust and oxidation protection
- High thermal and oxidation stability
- Doesn’t form sludge or carbon deposits
- Outstanding anti-wear protection
- Compatible with most types of rubber normally used in compressor seals
- Controls foam and reduces wear
- Resists water contamination
Application: Hydraulic Systems
Greyhound™ Hydraulic oil HM-32 is a trademark of a line of high-quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. The oils are formulated from selected paraffinic base stocks treated with antirust, antioxidant, and anti-wear additives. The hydraulic oil range is available in a wide range of viscosities to suit all practical requirements.
Greyhound™ Hydraulic oil is used as a working liquid for hydraulic actuators, hydraulic transmissions, and circulating oil systems of different units, low-and-moderate gears and worm gears, variable, electromagnetic, and gear couplings, bearing units, sliding guides and bearings, and other sites of the machinery of modern industrial equipment. The product does not contain chlorine compounds.
Specifications: ISO VG: 32, ISO 6743: HM, DIN 51524.2: HLP
Benefits:
- European base oils
- Superior rust and oxidation protection
- High thermal and oxidation stability
- Doesn’t form sludge or carbon deposits
- Outstanding anti-wear protection
- Compatible with most types of rubber normally used in compressor seals
- Controls foam and reduces wear
- Resists water contamination
Application: Hydraulic Systems
Greyhound™ Hydraulic oil HM-46 is a trademark of a line of high-quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. The oils are formulated from selected paraffinic base stocks treated with antirust, antioxidant, and anti-wear additives. The hydraulic oil range is available in a wide range of viscosities to suit all practical requirements.
Greyhound™ Hydraulic oil is used as a working liquid for hydraulic actuators, hydraulic transmissions, and circulating oil systems of different units, low-and-moderate gears and worm gears, variable, electromagnetic, and gear couplings, bearing units, sliding guides and bearings, and other sites of the machinery of modern industrial equipment. The product does not contain chlorine compounds.
Specifications: ISO VG: 46, ISO 6743: HM, DIN 51524.2: HLP
Benefits:
- European base oils
- Superior rust and oxidation protection
- High thermal and oxidation stability
- Doesn’t form sludge or carbon deposits
- Outstanding anti-wear protection
- Compatible with most types of rubber normally used in compressor seals
- Controls foam and reduces wear
- Resists water contamination
Application: Hydraulic Systems
Greyhound™ Hydraulic oil HM-68 is a trademark of a line of high-quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. The oils are formulated from selected paraffinic base stocks treated with antirust, antioxidant, and anti-wear additives. The hydraulic oil range is available in a wide range of viscosities to suit all practical requirements.
Greyhound™ Hydraulic oil is used as a working liquid for hydraulic actuators, hydraulic transmissions, and circulating oil systems of different units, low-and-moderate gears and worm gears, variable, electromagnetic, and gear couplings, bearing units, sliding guides and bearings, and other sites of the machinery of modern industrial equipment. The product does not contain chlorine compounds.
Specifications: ISO VG: 68, ISO 6743: HM, DIN 51524.2: HLP
Benefits:
- European base oils
- Superior rust and oxidation protection
- High thermal and oxidation stability
- Doesn’t form sludge or carbon deposits
- Outstanding anti-wear protection
- Compatible with most types of rubber normally used in compressor seals
- Controls foam and reduces wear
- Resists water contamination
Application: Hydraulic Systems
Greyhound™ Hydraulic oil HM-100 is a trademark of a line of high-quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. The oils are formulated from selected paraffinic base stocks treated with antirust, antioxidant, and anti-wear additives. The hydraulic oil range is available in a wide range of viscosities to suit all practical requirements.
Greyhound™ Hydraulic oil is used as a working liquid for hydraulic actuators, hydraulic transmissions, and circulating oil systems of different units, low-and-moderate gears and worm gears, variable, electromagnetic, and gear couplings, bearing units, sliding guides and bearings, and other sites of the machinery of modern industrial equipment. The product does not contain chlorine compounds.
Specifications: ISO VG: 100, ISO 6743: HM, DIN 51524.2: HLP
Benefits:
- European base oils
- Superior rust and oxidation protection
- High thermal and oxidation stability
- Doesn’t form sludge or carbon deposits
- Outstanding anti-wear protection
- Compatible with most types of rubber normally used in compressor seals
- Controls foam and reduces wear
- Resists water contamination