Purpose and Specifications

CASTROL 1535F1 is a premium synthetic engine oil designed for both diesel and gasoline engines across multiple vehicle brands. This 5-liter bottle contains a 5W-40 viscosity oil that flows easily in cold conditions (down to -30°C) while maintaining protective thickness at high engine temperatures (up to 150°C).

This oil meets strict international standards including ACEA C3 (European light-duty diesel), API SN (gasoline), and API CF (diesel). It is approved by major manufacturers including Ford, Mercedes-Benz, Volkswagen, Porsche, Renault, Opel, and Fiat, making it compatible with a wide range of modern vehicles.

Key Benefits:

• Protects against engine wear and deposit buildup
• Maintains stable viscosity across extreme temperature ranges
• Reduces oxidation and extends engine life
• Suitable for both turbocharged and naturally aspirated engines

When to Use / Replace?

Follow your vehicle manufacturer's recommended oil change interval, typically 10,000 to 15,000 kilometers or every 12 months, whichever comes first. Under severe driving conditions (frequent short trips, towing, or extreme temperatures), change oil more frequently—every 5,000 to 8,000 kilometers.

This oil is ideal for European vehicles and engines requiring low-SAPS formulation (reduced sulfur and ash content), which protects modern emission control systems.

Frequently Asked Questions

Q: Can I use this oil in my diesel and gasoline vehicles?
A: Yes. CASTROL 1535F1 meets specifications for both diesel (API CF) and gasoline (API SN) engines, making it suitable for mixed-vehicle households.

Q: What does 5W-40 mean?
A: The '5W' means the oil flows easily at cold temperatures (winter protection), while '40' indicates it maintains proper thickness at normal operating temperatures. This balance ensures reliable starting in cold weather and protection during highway driving.

Q: How long can I store this oil?
A: Unopened synthetic oil typically remains stable for 3 to 5 years when stored in a cool, dry place away from direct sunlight. Once opened, use within the same season or year for best results.