Purpose and Specifications

WOLF GUARDTECH 10W40 B4 1L is a semi-synthetic engine oil designed for four-stroke gasoline and diesel engines in passenger cars and vans, including direct injection diesels like Common Rail, HDI, and CDI. It meets key specs including FIAT 9.55535-D2, FIAT 9.55535-G2, MB 229.1, RENAULT RN0700, RN0710, VW 501.01, VW 505.00, ACEA A3/B3/B4, and API SN/CF.

This budget-friendly oil from WOLF provides total engine protection by keeping your engine clean and resisting wear, with excellent cold start fluidity down to -25°C for reliable starts in freezing weather and stable performance up to 220°C flash point for hot conditions. Its high resistance to ageing means longer oil life, reducing sludge and maintaining smooth operation all year round.

• Flows easily at low temps: Pour point -39°C ensures quick lubrication on cold mornings.
• Stays thick at high temps: Viscosity index around 155 keeps it protective during heavy loads or summer heat.
• Cleans engine acids: High base number handles combustion byproducts for cleaner internals.

When to Use / Replace?

Use this oil in normally aspirated or turbocharged engines from Fiat, Mercedes-Benz, Renault, VW, and similar brands requiring these specs. Perfect for everyday driving, city commutes, or highway runs in temps from -30°C to over 100°C engine heat.

Replace every 10,000-15,000 km or 12 months, whichever comes first, or sooner if towing heavy loads or in dusty/severe conditions. Shelf life is typically 3-5 years unopened in cool, dry storage.

FAQ

Is WOLF GUARDTECH 10W40 B4 suitable for my diesel van?
Yes, it excels in direct injection diesels like Common Rail systems, providing strong protection and year-round use.

Can I use it in winter?
Absolutely, its low-temp fluidity down to -39°C pour point ensures easy cold starts without strain.

How often should I change it?
Aim for every 10,000-15,000 km or annually to keep your engine clean and efficient.