KIXX Dynamic Gold API CH-4 SAE 15W-40 by GS Caltex is a high-quality heavy-duty diesel engine oil designed to provide dependable protection, durability, and performance for a wide range of diesel engines operating under tough working conditions. Formulated to meet API CH-4 specifications, this engine oil ensures reliable lubrication, effective deposit control, and extended engine life. Blended with premium base oils and a balanced additive system, KIXX Dynamic Gold delivers excellent resistance to oxidation, thermal degradation, and soot-related thickening. Its 15W-40 viscosity grade provides strong oil film strength and stable performance across varying temperatures, ensuring consistent protection against wear, corrosion, and harmful deposits. Applications: Heavy-duty trucks, buses, and commercial diesel vehicles Naturally aspirated and turbocharged diesel engines Construction, agricultural, and off-highway equipment Suitable for engines requiring API CH-4 performance levels