# BHARAT MGEO 15W-40 CI-4+ # Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil | BHARAT MGEO 15W-40 API CI-4+ SAE 15W-40 | API CI-4+ | Premium 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 engineered for modern turbocharged and naturally aspirated diesel engines operating under severe service conditions. It delivers outstanding soot handling capability, superior engine cleanliness, excellent wear protection, oxidation resistance and extended engine life for commercial vehicles and industrial equipment. ## What is 15W-40 API CI-4+ Diesel Engine Oil? 15W-40 API CI-4+ is a premium heavy-duty diesel engine oil developed for high-performance commercial diesel engines. Compared to CI-4 oils, CI-4+ offers improved soot control, enhanced wear protection, superior oxidation stability and excellent protection during extended drain intervals, making it ideal for turbocharged diesel engines operating under high loads. **BHARAT MGEO 15W-40 API CI-4+** is manufactured using premium quality base oils and advanced additive technology to provide exceptional lubrication under the most demanding operating conditions. It minimizes engine wear, controls piston deposits, maintains engine cleanliness and protects turbochargers while delivering reliable performance in long-haul transportation, mining, agriculture and construction applications. Recommended for heavy-duty trucks, buses, tractors, construction equipment, mining machinery, diesel generators and modern turbocharged diesel engines requiring SAE 15W-40 API CI-4+ engine oil. ## APPLICATIONS Vehicle / Equipment Application Heavy Duty Trucks Long Haul Transportation Commercial Buses Fleet Operations Agricultural Tractors Heavy Farming Applications Construction Equipment Severe Duty Operation Mining Machinery Continuous Heavy Load Turbocharged Diesel Engines Maximum Engine Protection Diesel Generators Continuous Power Supply ## KEY BENEFITS ★ **Outstanding Soot Control** — Prevents soot thickening and keeps the engine cleaner for longer. ★ **Superior Wear Protection** — Minimizes wear on pistons, liners, bearings and valve train components. ★ **Turbocharger Protection** — Provides dependable lubrication for modern turbocharged diesel engines. ★ **Exceptional Oxidation Stability** — Extends oil life while reducing sludge and varnish formation. ★ **High Temperature Performance** — Maintains viscosity under extreme engine operating temperatures. ★ **Extended Engine & Oil Life** — Supports longer service intervals and lower maintenance costs. ## WHY TRUST BHARAT LUBRICANTS? For over 40 years, BHARAT Lubricants has been manufacturing premium automotive and industrial lubricants trusted by fleet operators, transport companies and industries across India. Every heavy-duty engine oil is developed using advanced additive technology to deliver superior reliability, long engine life and outstanding performance under demanding operating conditions. - ✔ 40+ Years of Lubricant Manufacturing Excellence - ✔ Advanced Heavy Duty Diesel Technology - ✔ Superior Engine Cleanliness - ✔ Extended Drain Performance - ✔ Trusted by Commercial Fleet Operators ## TECHNICAL SPECIFICATIONS CHARACTERISTICS SPECIFICATION SAE Grade 15W-40 API Performance Level CI-4+ Engine Type Heavy Duty Diesel Engine Suitable For Turbocharged & Naturally Aspirated Diesel Engines Application Commercial Vehicles & Industrial Equipment Protection Wear, Soot, Oxidation & Corrosion Protection ## HOW TO USE 1. Warm the engine before draining the old engine oil. 2. Drain the used oil completely. 3. Replace the oil filter if recommended by the engine manufacturer. 4. Refill with BHARAT MGEO 15W-40 API CI-4+ according to the recommended oil capacity. 5. Check the oil level before starting the engine. 6. Follow the recommended oil drain interval for optimum performance. ## RELATED PRODUCTS - ➜ [BHARAT MGEO 15W-40 CH-4](https://www.bharatlubricants.com/collections/passenger-commercial-vehicle-diesel-engine-oil-at/products/bharat-mgeo-15w40-ch4-engine-oil "Best 15W-40 CF-4 Heavy Duty Diesel Engine Oil") - ➜ [BHARAT MGEO 20W-40 SM CH-4](https://www.bharatlubricants.com/collections/passenger-commercial-vehicle-diesel-engine-oil-at/products/bharat-mgeo-20w-40-sm-ch-4 "Best 15W-40 CF-4 Heavy Duty Diesel Engine Oil") - ➜ [BHARAT TSEO 20W-40 Tractor Engine Oil](https://www.bharatlubricants.com/products/bharat-tseo-20w-40-tractor-special-engine-oil "Best Tractor Engine Oil 20W40 for BS6 Tractors & Agricultural Engines in India") ## 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. ## 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. What is the advantage of API CI-4+ over CI-4?** API CI-4+ provides improved soot control, enhanced oxidation resistance, better wear protection and superior performance during extended drain intervals compared to standard CI-4 oils. **Q. Is this oil suitable for turbocharged diesel engines?** Yes. It is specially formulated to protect modern turbocharged and naturally aspirated heavy-duty diesel engines operating under severe service conditions. **Q. Can BHARAT MGEO 15W-40 CI-4+ be used in commercial fleets?** Yes. It is ideal for commercial transport fleets, buses, tractors, mining equipment, construction machinery and industrial diesel engines. **Q. What are the main benefits of BHARAT MGEO 15W-40 CI-4+?** It offers outstanding soot control, superior engine cleanliness, exceptional wear protection, extended oil life, turbocharger protection and longer engine durability. ## TYPICAL DATA 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 108 – 122 7 Kinematic Viscosity @ 100°C ASTM D445 cSt 14.5 – 15.8 8 Viscosity Index ASTM D2270 — Min. 145 9 Flash Point (COC) ASTM D92 °C Min. 230 10 Pour Point ASTM D97 °C Max. -30 11 Total Base Number (TBN) ASTM D2896 mg KOH/g 11.0 – 12.5 12 Sulphated Ash ASTM D874 wt.% Max. 1.35 13 Copper Corrosion ASTM D130 Rating 1A [📄 Download Product PDF](https://drive.google.com/file/d/1kvz-UQBZYUKiA90vG8SU1wpTQMw_pqUg/view?usp=sharing) ![Best engine oil manufacturer in surat](https://cdn.shopify.com/s/files/1/0771/4540/7511/files/new-bharat-femily-groups---Copy_bf53cd95-a5e1-445b-81f9-2b0669e22cb0.png?v=1778750514) ## Details - **Price:** 455.0 INR - 97860.0 INR - **Vendor:** Bharat Lubricants ## Variants | Variant | Price | Available | |---------|-------|-----------| | 1 Litter | 455.00 INR | In stock | | 5 Litters | 2250.00 INR | In stock | | 10 Litters | 4760.00 INR | In stock | | 20 Litters | 9480.00 INR | In stock | | 50 Litters | 23500.00 INR | In stock | | 210 Litters | 97860.00 INR | In stock | ## Images - Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil in india - Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil in vadodara - Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil in ankleshwar - Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil in dahej - Best 15W-40 CI-4+ Heavy Duty Diesel Engine Oil in ahmadabad - Best 85W140 Gear Oil for Differentials, Axles Heavy-Duty Gearboxes in surat --- > Source: [Bharat Lubricants](https://www.bharatlubricants.com/products/bharat-mgeo-15w-40-ci-5) > Updated: 2026-07-29