Caltex Delo Gold Ultra SAE 15W-40 is the engine oil for diesel vehicles that prioritize performance and longevity This premium-grade oil delivers superior wear protection and excellent thermal stability, making it indispensable for heavy-duty applications Its advanced cleaning agents actively reduce sludge, ensuring your engine functions effectively day after day Drivers can take advantage of enhanced fuel efficiency and reliability with Caltex Delo Gold Ultra—your ideal partner for maintaining a strong, resilient diesel engine!