ZIC X1 (20W-50)-4L is a multi-viscosity gasoline engine oil designed to deliver dependable protection and cleanliness for passenger cars and light commercial vehicles, even under tough driving conditions. Formulated with quality base oils and additives, it helps reduce wear, limit sludge buildup, and maintain smooth engine performance. Its 20W-50 viscosity ensures good flow during cold starts and stable lubrication at high temperatures, and it is suitable for engines that require oils meeting API SG–level performance.