Castrol Alphasyn PG 150


Castrol Alphasyn PG 150 Is a synthetic gear oils




The Castrol Alphasyn™ PG 150 gear oil range of synthetic lubricants are based on polyalkyleneglycol (PAG) fluids enhanced with antioxidants, rust inhibitors and Extreme Pressure (EP) additives of high thermal stability.



Castrol Alphasyn PG 150 gear oils are primarily intended for use in worm reduction gear boxes, where the low coefficient of friction of the PAG base fluid improves efficiency and consequently reduces power consumption and operating temperatures. This is particularly important in applications where sliding contact is high. The use of a PAG base stock provides inherently high Viscosity Index (VI) and low pour points making these products suitable for use over a wide temperature range. Alphasyn PG meets the requirements of most OEM’s that allow the use of PAG based gear oils.



  • Low coefficient of friction reduces energy consumption and lowers operating temperatures, this leads to longer oil life.
  • Good thermal and oxidative stability provides reliable operation and extended operating life when compared to mineral oil based products.
  • Inherently high VI makes the product suitable for operations over a wide temperature range.
  • High load carrying capacity and good wear protection reduces maintenance.

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