It seems like you're referring to hydraulic oils with a viscosity grade of ISO VG 68 and a brand name "HYDRO HLP." Hydraulic oils are a type of fluid used in hydraulic systems to transmit power and lubricate moving parts. The ISO VG 68 viscosity grade indicates the oil's viscosity at 40°C (104°F). It's a relatively common viscosity grade for hydraulic oils and is suitable for a wide range of applications.
"HYDRO HLP" might be a brand or product name for a specific type of hydraulic oil. However, as of my last knowledge update in September 2021, I don't have specific information about this particular brand or product. It's possible that it could be a newer product or a brand that wasn't widely recognized at that time.
When selecting a hydraulic oil, it's important to consider factors such as the equipment's requirements, operating conditions, and manufacturer recommendations. Using the appropriate hydraulic oil with the right viscosity and additives is crucial for maintaining the efficiency and longevity of hydraulic systems.
If you have any specific questions about hydraulic oils, their properties, or their applications, feel free to ask, and I'll do my best to assist you based on the information available up to September 2021.