NATIONAL GEAR OIL 90L is a high-quality, mineral-based gear oil formulated to provide reliable protection for gears and transmissions. Designed to handle heavy loads and high temperatures, it ensures smooth performance and extended lifespan for your vehicle’s gear systems. Whether you’re using it for manual transmissions, differentials, or industrial applications, National Gear Oil 90L offers superior protection against wear, corrosion, and oxidation. Its excellent anti-friction properties help reduce wear and improve overall performance, making it ideal for both light and heavy-duty vehicles.