Castrol Alpha HC Range (previously called Isolube Range) lubricants provide excellent performance in circulating oil and gear set applications. Alpha HC lubricants contain technically advanced chemistries that exceed the performance levels historically attributed to the traditional synthetic products. Alpha HC lubricants excel in applications requiring optimum oxidation control and thermal stability, consistent anti-wear performance, and low carbon forming tendencies. The uniqueness of the Alpha HC Lubricants is most visible in compressors that operate under severe field and industrial conditions.

When compared to coventional gear lubricants:

  • Alpha HC lubricants chosen synthetic components provide the potential for extended drain intervals and reduced maintenance costs.
  • Alpha HC lubricants have noted viscosity range properties for low temperature fluidity and controlled volatility.
  • Other benefits of this innovative formulation include superior rust protection, consistent demulsibility and hydrolytic stability.

Product Data Sheet

Material Safety Data Sheet


EP 150
EP 220