Castrol RX Super 15W-40 CJ-4/E9 Diesel Engine Oil is engineered to deliver superior protection and performance in heavy-duty diesel engines. With its advanced DuraShield™ Technology, it provides 40% better wear protection than industry standards, making it the trusted choice for demanding conditions.

One of the leading causes of engine damage is abrasive wear, often triggered by soot build-up and high-pressure operating environments. Castrol RX Super combats this in two key ways. First, its advanced soot management system prevents harmful soot particles from clumping together, reducing metal-to-metal contact. Second, it forms a durable protective film on moving parts, ensuring maximum engine life and efficiency even under severe conditions.

This premium 15W-40 diesel engine oil is fully compatible with modern Diesel Particulate Filter (DPF) systems and meets ACEA E9 and API CJ-4 industry specifications, ensuring reliability for a wide range of heavy-duty applications.

Features:

• Provides extended engine life with 40% better wear protection
• Protects against soot-related damage, reducing downtime and repair costs
• Forms a long-lasting protective layer to resist wear under tough operating conditions
• Compatible with DPF-equipped vehicles, ensuring compliance with modern emission standards
• Trusted by professionals for heavy-duty diesel engines in trucks, buses, and machinery

Specifications / Approvals:

Castrol RX Super 15W-40 CJ-4/E9 meets or exceeds the following specifications:

• ACEA E9
• API CJ-4
• JASO DH-2
• CAT ECF-3
• Cummins CES 20081
• DDC Powerguard 93K218
• Deutz DQC III-18 LA
• DTFR 15C100 (MB 228.31)
• Mack EO-O Premium Plus
• MTU Oil Category 2.1
• RVI RLD-3
• Volvo VDS-4

It is also suitable for agricultural applications where API CJ-4 or ACEA E9 oils are required.

Part number: 3420723