Purpose and Specifications

WOLF GUARDTECH 10W40 SN is a reliable semi-synthetic engine oil perfect for petrol and diesel engines in passenger cars and vans. It flows smoothly at cold starts down to -25°C for easy winter mornings and stays thick up to 220°C to protect during hot drives or heavy loads.

This budget-friendly oil meets key specs like MB 229.1, ACEA A3/B3/B4, and API SN/CF, making it ideal for normally aspirated, supercharged, and direct-injection diesels like Common Rail, HDI, or CDI. It keeps your engine clean, fights wear and sludge, and offers year-round performance with excellent temperature stability.

• Practical benefits: Smooth cold starts, lasting protection in heat, reduced engine wear for longer life.
• 1L bottle suits top-ups or small engines.
• Replace every 10,000-15,000 km or 12 months for best results.

When to Use / Replace?

Use this oil in older cars (5+ years) or vans needing solid all-season protection without premium cost. Perfect for mixed driving: city traffic, highways, or towing. Switch to it if your manual lists MB 229.1 or ACEA A3/B4.

Replace when oil looks dirty, every 10,000-15,000 km, or yearly - whichever comes first. Shelf life is 5 years unopened in cool, dry storage.

FAQ

Is WOLF GUARDTECH 10W40 SN good for winter driving?
Yes, it flows great at low temps down to -39°C pour point, ensuring quick protection on cold starts.

Can I use it in my diesel van with Common Rail?
Absolutely, it`s specially recommended for direct-injection diesels like Common Rail, HDI, and CDI for clean operation and durability.

How often should I change it?
Change every 10,000-15,000 km or 12 months to maintain engine cleanliness and protection.