Best 15W-40 CI-4 Heavy Duty Diesel Engine Oil | BHARAT MGEO 15W-40 API CI-4 SAE 15W-40 | API CI-4 | Heavy Duty Diesel Engine Oil | Turbocharged Engine Protection | Advanced Technology ✔ SAE 15W-40 ✔ API CI-4 ✔ HEAVY DUTY DIESEL OIL ✔ ADVANCED TECHNOLOGY BHARAT MGEO 15W-40 API CI-4 is a premium heavy-duty multigrade diesel engine oil specially formulated for modern turbocharged and naturally aspirated diesel engines. It provides outstanding engine cleanliness, superior soot handling, exceptional wear protection, oxidation resistance and long engine life under severe operating conditions. What is 15W-40 API CI-4 Diesel Engine Oil? 15W-40 API CI-4 is a high-performance heavy-duty diesel engine oil developed for modern commercial diesel engines. It provides superior lubrication, protects against engine wear, controls soot and sludge, reduces piston deposits and delivers reliable protection for turbocharged diesel engines operating under heavy loads. BHARAT MGEO 15W-40 API CI-4 is manufactured using premium quality base oils and advanced additive technology to provide maximum engine protection in commercial vehicles. It offers excellent thermal stability, outstanding oxidation resistance and superior piston cleanliness while maintaining optimum lubrication during long-distance transport, mining, construction and agricultural operations. Recommended for trucks, buses, tractors, construction equipment, mining machinery, diesel generators and turbocharged diesel engines requiring SAE 15W-40 API CI-4 engine oil. APPLICATIONS Vehicle / Equipment Application Heavy Duty Trucks Long Distance Transport Commercial Buses Fleet Operations Agricultural Tractors Heavy Farm Applications Construction Equipment Severe Duty Operation Mining Equipment Continuous Heavy Load Turbocharged Diesel Engines Maximum Engine Protection Diesel Generators Continuous Power Generation KEY BENEFITS ★ Outstanding Wear Protection — Protects engine components under heavy-duty operating conditions. ★ Superior Soot Control — Keeps engines cleaner by preventing soot thickening and sludge formation. ★ Turbocharger Protection — Delivers reliable lubrication for high-speed turbocharged diesel engines. ★ Excellent Oxidation Resistance — Extends oil life while reducing harmful deposits. ★ Superior High Temperature Stability — Maintains viscosity and lubrication under severe conditions. ★ Extended Engine Life — Reduces maintenance costs while improving equipment reliability. WHY TRUST BHARAT LUBRICANTS? With over 40 years of lubricant manufacturing expertise, BHARAT Lubricants produces premium heavy-duty diesel engine oils engineered for Indian commercial vehicles and industrial equipment. Every formulation is developed using advanced additive technology to ensure maximum protection, long drain performance and dependable reliability. ✔ 40+ Years of Lubricant Manufacturing ✔ Advanced Heavy Duty Diesel Technology ✔ Superior Engine Cleanliness ✔ Extended Oil Drain Capability ✔ Trusted by Fleet Owners Across India HOW TO USE Warm the engine before draining used engine oil. Completely drain the old oil. Replace the oil filter if recommended. Refill with BHARAT MGEO 15W-40 API CI-4 according to the engine manufacturer's recommended quantity. Check the oil level before operating the engine. Replace engine oil at the recommended maintenance interval. Availability Across India Our products are available across India through an extensive network of authorized distributors, lubricant dealers, automotive spare parts retailers, service centers, workshops, industrial suppliers, fleet maintenance facilities, and wholesale partners. With a strong distribution presence in major cities, towns, and industrial Hardware Shops, customers can easily access genuine products for automotive, commercial, agricultural, and industrial applications. For bulk requirements, dealership inquiries, or product availability in your area, customers may also connect directly through our sales and distribution network. RELATED PRODUCTS BHARAT Biker Racing DNA 4T Engine Oil BHARAT Biker Chain Cleaner BHARAT Adhesive Chain Lube Spray FREQUENTLY ASKED QUESTIONS Q. What is BHARAT MGEO 15W-40 API CI-4 used for? It is designed for heavy-duty diesel engines used in trucks, buses, tractors, mining equipment, construction machinery and diesel generators requiring SAE 15W-40 API CI-4 engine oil. Q. Is BHARAT MGEO 15W-40 CI-4 suitable for turbocharged diesel engines? Yes. It is specially formulated to provide superior protection for modern turbocharged and naturally aspirated diesel engines operating under heavy-duty conditions. Q. What are the benefits of API CI-4 engine oil? API CI-4 engine oils offer excellent soot control, outstanding wear protection, improved oxidation resistance, cleaner pistons and extended engine durability. Q. Can this oil be used for commercial fleet vehicles? Yes. It is ideal for fleet operators, transport vehicles, heavy-duty trucks, buses, tractors and industrial diesel equipment. Q. Does this oil help extend engine life? Yes. Its advanced additive technology minimizes wear, controls deposits and provides long-lasting lubrication for maximum engine reliability and extended service life. TECHNICAL SPECIFICATIONS SR. NO. CHARACTERISTICS TEST METHOD UNIT TYPICAL VALUE 1 SAE Grade SAE J300 — 15W-40 2 Performance Level API — CI-4 3 Appearance Visual — Clear & Bright 4 Colour Visual — Amber 5 Density @ 15°C ASTM D4052 g/ml 0.875 – 0.890 6 Kinematic Viscosity @ 40°C ASTM D445 cSt 105 – 120 7 Kinematic Viscosity @ 100°C ASTM D445 cSt 14.2 – 15.5 8 Viscosity Index ASTM D2270 — Min. 140 9 Flash Point (COC) ASTM D92 °C Min. 225 10 Pour Point ASTM D97 °C Max. -30 11 Total Base Number (TBN) ASTM D2896 mg KOH/g 10.0 – 11.5 12 Sulphated Ash ASTM D874 wt.% Max. 1.35 13 Copper Corrosion ASTM D130 Rating 1A *The specifications are subject to variations/development/customization. The information in this publication is based on our experience and reports from customers. There are many factors outside our control or knowledge which affect the use and performance of our products, for which reason it is given without responsibility. 📄 Download Product PDF
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