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SKU 3112G

CASTROL ALPHASYN HG 100

CASTROL ALPHASYN HG 100 - High Performance Gear and Bearing Lubricant

Castrol Alphasyn HG synthetic fluids are high-performance lubricants designed for both gear and bearing applications. They are made from a polyalphaolefin base that is engineered to offer specific performance advantages over mineral oil and synthetic oil-based fluids. They are also engineered with additives to offer a greater range of vital benefits.


Alphasyn HG fluids have state-of-the-art thermal stability and oxidation stability, making them ideal for machinery with high operating temperatures. With an enhanced load-carrying design, these lubricants are also perfect for applications with high loadings.

Grouped product items
Product Name Qty
CASTROL ALPHASYN HG 100 (208 Litre Drum)
£10,923.17 £9,102.64

CASTROL ALPHASYN HG 100

Castrol Alphasyn HG is a high-performance synthetic lubricant designed to offer superior performance benefits over conventional mineral oil and synthetic fluid counterparts. It is a polyalphaolefin-based synthetic lubricant, formulated with specially selected additives. This product is designed for use in both gear and bearing applications, making it a versatile choice for a wide range of automotive applications.


It is particularly suitable for applications at high operating temperatures and loadings, providing excellent thermal and oxidation stability. This product offers enhanced load carrying ability, making it a reliable choice for heavy-duty applications. It is designed to offer specific performance benefits over its conventional mineral oil and synthetic fluid counterparts.


Castrol Alphasyn HG meets the following industry standards:

  • DIN 51517 pt 3, Industrial gear oil specification.
  • DIN 51524 pt 2, Industrial hydraulic oil specification.

The combination of Castrol’s product development expertise and the rigorous adherence to international standards means you are guaranteed to find a product that meets your specific requirements.

Advantages of Castrol Alphasyn

One of the key advantages of the Alphasyn range is its substantially extended lubricant life. This means less frequent changes, resulting in savings in both time and maintenance costs. It offers proven superior performance across a wide temperature range, and in particular at high temperatures. This makes it a reliable choice for applications operating under varying temperature conditions.


Products in the Alphasyn range boast exceptional lubricity properties, which increase mechanical efficiency and minimise energy losses. This can lead to significant energy savings over time. They also offer excellent anti-wear, extreme pressure and load carrying properties. This leads to savings in both maintenance time and costs, making it a cost-effective choice for your lubrication needs.


With its excellent thermal and oxidative stability, Castrol Alphasyn HG can withstand high operating temperatures without breaking down, ensuring consistent performance and protection for your equipment. With vital additives and advanced lubricant properties such as a low pour point and good air and water separation capabilities, the lubricant delivers optimal performance and ensures the longevity of your equipment.

Choosing the right lubricant

It can be hard to determine which lubricant is right for a particular application without a strong foundation of technical knowledge. Sometimes, it is best to work with an expert who can help you to identify the best possible product for your needs while ensuring compatibility and delivering any performance improvements you are seeking.


The technical specialists at Broughton Lubricants have many years of combined experience in providing advice and guidance on engine oils and lubricants for automotive stakeholders, including everyone from fleet managers to manufacturers. Contact our team for bespoke advice on your lubrication needs by calling 03300 555 109 or using our online enquiry form today.