Diesel Engine Oils API CI-4 15W40

About Diesel Engine Oils API CI-4 15W40

Diesel Engine Oil API CI-4 15W40 is a premium quality heavy-duty lubricant specially formulated for modern high-speed diesel engines operating under severe conditions. It is manufactured using high quality base oils and advanced additive technology to provide excellent protection against engine wear, soot formation, oxidation, sludge build-up, and high-temperature deposits.

This engine oil is designed for turbocharged and naturally aspirated diesel engines used in commercial vehicles, construction equipment, agricultural machinery, generators, and industrial applications. The API CI-4 performance level ensures reliable lubrication for engines operating with Exhaust Gas Recirculation (EGR) systems while maintaining excellent engine cleanliness and long oil drain performance.

Its multi-grade viscosity 15W40 offers outstanding lubrication during cold starts and maintains stable oil film strength at high operating temperatures, ensuring smooth engine performance and extended engine life.

Applications

Diesel Engine Oil API CI-4 15W40 is recommended for:

• Heavy-duty diesel trucks and buses
• Construction and mining equipment
• Agricultural tractors and harvesters
• Diesel generator sets
• Fleet and transport vehicles
• Turbocharged and naturally aspirated diesel engines
• Highway and off-highway diesel applications
• Industrial diesel engines operating under severe load conditions

Suitable for use where API CI-4, CH-4, CG-4, or CF performance is required.

Key Specifications

Values are typical characteristics and may vary slightly during production.

Features & Benefits

Excellent Engine Protection

Provides superior protection against wear, scuffing, and corrosion to extend engine life.

Outstanding Thermal Stability

Maintains viscosity and performance under high-temperature operating conditions.

Soot & Deposit Control

Advanced detergent and dispersant additives minimize sludge and soot accumulation.

Longer Engine Life

Reduces piston deposits and ring sticking for improved engine durability.

Enhanced Oxidation Resistance

Prevents oil thickening and degradation during long operating hours.

Improved Fuel Efficiency

Helps reduce friction and ensures smoother engine operation.

Excellent Cold Start Performance

Ensures quick lubrication flow during cold weather starting conditions.

Turbocharger Protection

Provides reliable lubrication and protection for turbocharged diesel engines.

Reduced Maintenance Cost

Supports longer drain intervals and minimizes downtime.