Purpose and Specifications

Castrol Engine Shampoo 300ml is a powerful pre-oil change cleaner that dissolves engine sludge and dirt, restoring power and efficiency to gasoline and diesel engines. Add one 300ml bottle to engines with 3-6 liter oil capacity, idle for 10 minutes, then drain old oil and refill with fresh. Its solvent-free PCA formula removes up to 85% of deposits without harming seals or parts, keeping oil galleries clear for smoother operation in everyday driving from -20°C to over 100°C engine temps.

• Volume: 300ml - perfect for most cars
• Compatibility: Petrol, diesel, motorbikes, light commercial vehicles (not rotary or 2-cycle)
• Shelf life: 3-5 years stored under cover, away from temps over 60°C or freezing

When to Use / Replace?

Use every other oil change (around 10,000-20,000 km or 12 months) for high-mileage vehicles over 100,000 km to prevent sludge buildup from short trips and city driving. Ideal for older engines or as prevention in new ones before routine service. No replacement needed - it's a one-time flush per use.

FAQ

Is Castrol Engine Shampoo safe for my engine seals?
Yes, its parts-friendly, solvent-free formula won't damage seals, gaskets, or components during the 10-minute idle clean.

How often should I use it?
Every other oil change for best results, especially in high-mileage or hard-driven engines to maintain peak performance.

Can I use it in diesel engines?
Absolutely, it's proven effective in both petrol and light-duty diesel engines up to 6 liters oil capacity.