Purpose and Specifications

Shell Helix Ultra ECT C3 5W-30 5L is a premium fully synthetic engine oil designed for modern vehicles with emission control systems like diesel particulate filters (DPF) and catalytic converters. Its low-ash formula protects these systems from clogging, ensuring your engine runs clean and efficient while boosting fuel economy by up to 1.7%. The 5W-30 viscosity flows easily for quick cold starts down to -35°C and stays thick at high operating temperatures up to 150°C, providing outstanding wear protection for pistons, cylinders, and bearings.

This oil meets top specs including ACEA C3, API SN, BMW LL-04, MB 229.31/51/52, GM dexos2, and Chrysler MS-11106, making it ideal for BMW, Mercedes, VW, and other high-performance engines. It keeps sludge and deposits away for longer engine life, with a typical replacement interval of 15,000-30,000 km or 12 months, depending on your vehicle's manual.

When to Use / Replace?

• Use it if: Your car has DPF, catalytic converters, or requires low-SAPS oil per the manual – perfect for diesel and gasoline engines in Euro 6 compliant vehicles.
• Daily driving: City commutes, highways, or mixed conditions; reduces friction for better mileage.
• Replace every: 15,000-30,000 km or annually to maintain peak performance and avoid costly DPF repairs.
• Shelf life: 5 years unopened when stored cool and dry.

FAQ

Is this oil good for my BMW diesel?
Yes, its BMW LL-04 approval ensures full compatibility and DPF protection for reliable performance.

Can it improve my fuel efficiency?
Absolutely – low friction design delivers up to 1.7% better economy, meaning more km per tank.

What's the cold start benefit?
Flows fast at -35°C for easier winter starts and quicker warm-up, protecting your engine from startup wear.