100% Genuine Caltex Lubricant: Authentic heavy-duty diesel engine oil available directly at Oil Experts Bahawalpur.Patented ISOSYN Technology: Combines premium hydrocracked base oils with high-performance additives to deliver synthetic-like durability and protection. Meets API CI-4 / SL Standards: Certified protection for turbocharged, intercooled, and naturally aspirated diesel engines with mixed-fleet petrol capability. Advanced Soot & Sludge Dispersion: Suspends soot particles to control oil thickening and prevent valve train wear. Extended Service Drain Intervals: Engineered to protect against thermal breakdown and maintain total base number (TBN) during extended drain periods. Piston & Liner Wear Defense: Exceptional ring-belt deposit control and bore polishing resistance maximize engine compression and efficiency.Packaging: 4-Liter heavy-duty blue container with dual-grip carry handle.