Castrol Premium Cool Plus
Castrol Premium Cool Plus is an ethylene glycol based engine coolant concentrate 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. It has been used successfully for many years in U.S., European and Japanese turbocharged and naturally aspirated diesel engines, and is particularly recommended for wet liner engines operating in both on-highway and off-road environments and arduous city stop-start driving conditions – it is Castrol's prime recommendation for all US heavy duty diesel engine coolant systems. Castrol Premium Cool Plus is not generally recommended for passenger cars and passenger car type light commercial vehicles which may have zinc or zinc alloy type components, such as some early model Commodores; otherwise, the product is also suitable for use in petrol engined and light commercial vehicles, comfortably exceeding all the requirements of the latest Australian Standard for passenger car coolants, AS2108-2004.
TECHNICAL SPECIFICATIONS
| Appearance | Green |
| pH, Engine Coolants (50%) | 10.5 |
| Density @ 20°C | 1.13 g/ml |
| Freezing Point (50% v/v) | -37°C |
| Boiling Point | 181°C |
The above data is typical and does not constitute a specification.
PRODUCT PERFORMANCE CLAIMS
| •ASTM D3306(I) |
| •ASTM D4985 |
| •ASTM D6210 |
| •AS/NZS 2108-2004 |
Data Sheet Date: 26 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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sales@lubecontrol.com.au
1300 917 946
+61 8 8298 5563
Technical Documents
Premium Cool Plus - 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.