Castrol RX DIESEL 15W-40 CI-4/E7 is a high-performance diesel engine oil formulated to deliver outstanding protection for a wide range of heavy-duty diesel engines. It is designed to meet the demands of both on-road and off-road applications, providing excellent wear protection, cleaner engines, and extended engine life, especially in engines operating in severe conditions.

Key Features:

• Advanced Protection Against Wear: The formulation helps prevent wear by forming a strong protective layer on metal surfaces, extending engine life.
• Cleaner Engine: Provides effective control over soot and deposits, ensuring cleaner engines and improved performance.
• Improved Oil Life: Enhanced oxidation resistance extends oil life, even under high-temperature and high-stress conditions, leading to longer drain intervals.
• Excellent Soot and Sludge Control: Minimizes soot-related oil thickening and the formation of harmful sludge, ensuring optimal engine cleanliness.
• Enhanced Shear Stability: Ensures consistent viscosity and protection, even in heavy-duty applications and at high temperatures.

Typical Characteristics:

• Viscosity @ 40°C: 115 cSt
• Viscosity @ 100°C: 15.1 cSt
• Viscosity Index: 140
• Pour Point: -45°C
• Flash Point: 206°C
• Total Base Number, TBN: 10.9
• Density @ 15°C: 0.876 g/mL

Main Applications:

• Heavy-Duty Diesel Engines: Suitable for use in a wide variety of heavy-duty diesel engines, including those in trucks, buses, and construction machinery.
• Off-Road Equipment: Recommended for use in off-road applications such as mining, agriculture, and quarrying equipment.
• On-Road Applications: Provides reliable protection for long-haul trucks and commercial vehicles operating under high loads.
• Engines Requiring CI-4 and E7 Lubricants: Perfect for engines where high-performance CI-4 or ACEA E7 oils are required, especially those with EGR (Exhaust Gas Recirculation) systems.

Specifications and Approvals:

• API CI-4
• ACEA E7
• Caterpillar ECF-2, ECF-1-a
• Cummins CES 20078, 20077
• Detroit Diesel DFS 93K215
• Mack EO-M Plus, EO-N
• MTU Oil Category 2
• MB-Approval 228.3
• Renault Trucks RLD-2
• Volvo VDS-3

Benefits:

• Extended Engine Life: Provides excellent wear protection, even under high load conditions, which helps extend the engine's operational life.
• Fuel Economy: Helps reduce fuel consumption by maintaining optimal engine performance.
• Longer Drain Intervals: High resistance to oxidation and sludge formation enables longer oil drain intervals, reducing downtime and maintenance costs.
• Excellent Soot Handling: Controls soot to prevent thickening of the oil, ensuring it flows smoothly and protects the engine.