Castrol GTX 20W-50 is a conventional multi-grade mineral motor oil engineered to clean away existing sludge, prevent new deposit formation, and resist viscosity and thermal breakdown under high temperatures.
• Sludge Protection: Actively cleans away old sludge and protects against new buildup caused by heat, severe driving conditions, and fuel quality.
• Viscosity Grade (20W-50): Flows like a 20-weight oil during cold starts for smooth circulation, then maintains the protective thickness of a 50-weight oil once the engine reaches full operating temperature.
• Thermal Stability: Resists oil thickening, breakdown, and burn-off in warm climates or heavy-load driving.
• Anti-Wear Additives: Helps extend engine life by reducing metal-to-metal friction on critical internal components.
