Purpose and Specifications

Shell Helix Ultra ECT C3 5W-30 4L is a premium fully synthetic engine oil designed for modern gasoline and diesel engines with emission systems like diesel particulate filters (DPF) and catalytic converters. Its low-ash formula keeps these systems clean to prevent clogs and maintain strong performance, while advanced cleansing technology removes sludge for a factory-clean engine.

The 5W-30 viscosity flows easily for quick cold starts down to -35°C and stays thick at high operating temps up to 150°C, cutting friction for up to 1.7% better fuel economy. It meets tough specs like API SN, ACEA C3, MB 229.51/229.31, BMW LL-04, and GM dexos2, making it ideal for approved vehicles from Mercedes, BMW, and more.

• Keeps DPF and catalysts ash-free for reliable emissions control
• Superior wear protection on pistons, cylinders, and bearings extends engine life
• Low evaporation means less top-up between changes
• 4-liter pack suits most passenger car oil changes

When to Use / Replace?

Use this oil in vehicles with DPF or emission controls for everyday driving, highway runs, or mixed conditions. Perfect for year-round use in moderate climates. Replace every 15,000-30,000 km or 12 months, following your owner's manual-whichever comes first-to keep protection strong. Shelf life is 5 years unopened in cool, dry storage.

FAQ

Is Shell Helix Ultra ECT C3 5W-30 safe for my DPF-equipped diesel?
Yes, its low-SAPS formula protects DPF from ash buildup, keeping it clean and efficient.

Can I use it in cold winters?
Absolutely, the 5W rating ensures fast flow and easy starts even at -35°C.

How often should I change it?
Every 15,000-30,000 km or yearly-check your manual for exact intervals based on driving.