Castrol Rx Diesel 15W40 CI4PLUSE7
Castrol RX Diesel 15W-40 CI-4 Plus/E7 is a multi-purpose, heavy duty diesel engine oil. It is suitable for use in high speed 4-stroke diesel engines that use a broad range of fuel qualities, and is also compatible with diesel engines fitted with exhaust gas recirculation (EGR) systems. It provides effective piston deposit control and maintains its viscosity to encourage long and healthy engine life.
KEY FEATURES
| •Contains cleaning agents which displace particles that may otherwise build up on engine surfaces, reducing deposits |
| •Contains anti-oxidants which disrupt the chemical reactions that can lead to oil thickening |
TECHNICAL SPECIFICATIONS
| Density @ 15°C | 0.876 g/ml (ASTM D4052) |
| Viscosity, Kinematic 100°C | 15.1 mm²/s (ASTM D445) |
| Viscosity, CCS -20°C (15W) | 6400 mPa.s (cP) (ASTM D5293) |
| Viscosity, Kinematic 40°C | 112 mm²/s (ASTM D445) |
| Viscosity Index | 141 (ASTM D2270) |
| Ash, Sulphated | 1.4% wt (ASTM D874) |
| Total Base Number, TBN | 10.9 mg KOH/g (ASTM D2896) |
| Pour Point | -45°C (ASTM D97) |
| Flash Point, PMCC | 206°C (ASTM D93) |
PRODUCT PERFORMANCE CLAIMS
| •ACEA E7 |
| •API CI-4 PLUS |
| •CAT ECF-2 |
| •Approved: Cummins CES 20077, CES 20078 |
| •Approved: DDC Powerguard 93K214 |
| •Approved: Deutz DQC III-18 |
| •Approved: DTFR 15B110 |
| •Approved: Mack EO-N |
| •Approved: MTU Oil Category 2 |
| •Approved: RVI RLD-2 |
| •Approved: Volvo VDS-3 |
| •Meets requirements of MAN M 3275-1 |
STORAGE
| •Store all packages under cover |
| •Where outside storage is unavoidable, lay drums horizontally to avoid water ingress and damage to drum markings |
| •Do not store above 60°C, exposed to hot sun or freezing conditions |
Data Sheet Date: 28 Jan 2026
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
RX Diesel 15W-40 CI-4 Plus/E7 - 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.