Castrol Premium 50 Cool PL
Castrol Premium Cool Plus 50 is a ready to use ethylene glycol based engine coolant containing a balanced mixture of organic acid and inorganic corrosion inhibitors, specially designed to service the requirements of a broad range of heavy duty diesel engines, particularly those with wet liners. It is a low silicate, phosphate and amine free formulation providing extended service life protection for lead solder, aluminium, yellow metal and ferrous alloys, with corrosion inhibitors that prevent corrosion occurring between the dissimilar metals found in modern engine cooling systems, and satisfies major industry coolant standards. It is a pre-mixed, ready to use coolant that should be added to cooling systems as a top up or when effecting a complete system change – do not dilute further. As supplied, it contains sufficient additional inhibitors to be used as an initial fill fluid without the need for an initial charge of a Supplementary Coolant Additive (SCA) where this is required; the SCA cartridge, where fitted, should be replaced with a zero SCA unit water cartridge until the next service, when an appropriate SCA adjustment should be made.
TECHNICAL SPECIFICATIONS
| Appearance | Clear |
| Colour | Green |
| Reserve Alkalinity | min. 4.0 ml 0.1N HCl |
| Density @ 20°C | min. 1.067 g/ml |
The above data is typical and does not constitute a specification.
KEY FEATURES
| •Its balanced formulation of organic acid and conventional inhibitors guarantees performance in a wide range of diesel engines |
| •Covers the needs of a wide range of engines, assisting with rationalisation of coolants |
| •Compatible with most commercial SCA's |
PRODUCT PERFORMANCE CLAIMS
| •ASTM D3306 |
| •ASTM D6210 |
Data Sheet Date: 04 Aug 2025
The information contained in this data sheet is based on data considered to be accurate. No warranty is expressed or implied regarding the accuracy of this data. Product specifications and availability are subject to change without notice. Lube Control Pty Ltd accepts no responsibility for any loss or damage arising from the use of this information.
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Technical Documents
Premium Cool Plus 50 - TDS
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Product details and specifications are for reference only and subject to change without notice. Customers must independently verify all technical data and OEM approvals directly with the manufacturer prior to purchase. We accept no liability for any errors, omissions, or damages arising from reliance on this information.