HD SUP SI.GR SAE 20W-20 1L is a high-quality engine oil specifically designed to meet the demands of heavy-duty diesel and gasoline engines. This multigrade oil provides excellent protection against wear and corrosion, as well as stable performance at high and low temperatures. The 20W-20 viscosity ensures the oil flows efficiently, lubricating and protecting critical engine components. Ideal for older vehicles or machinery requiring SAE 20W-20 specification. Supplied in a convenient 1-litre package, perfect for top-ups or small maintenance tasks. Provides reliable and long-lasting engine protection.