Purpose and Specifications

WOLF GUARDTECH 15W50 SL/CF 1L is a reliable semi-synthetic engine oil that keeps your engine clean and protected. It minimizes oxidation to fight sludge, soot, and piston deposits, ensuring smooth performance in gasoline and diesel engines, including turbocharged ones. This budget-friendly choice meets MB 229.1, ACEA A3/B3/B4, and API SL/CF specs for broad compatibility with cars, vans, and light trucks.

Practical benefits include strong protection at high temperatures up to 150°C while staying fluid down to -20°C for easy winter starts. It offers stable viscosity for everyday driving, extending engine life with optimal cleanliness and catalyst protection.

When to Use / Replace?

• Use it in: Older 4-stroke gasoline or diesel engines, mixed fleets, or high-mileage vehicles running in tough conditions like heavy loads or frequent short trips.
• Replace every: 10,000-15,000 km or 12 months for normal driving; check sooner (every 5,000-8,000 km) in severe conditions like towing or dusty roads.
• Shelf life: Up to 5 years unopened in cool, dry storage.

Frequently Asked Questions

Is this oil good for high-mileage engines?
Yes, its cleaning additives reduce sludge buildup, ideal for engines over 100,000 km.

Can I use it in both gas and diesel cars?
Absolutely, the SL/CF ratings make it versatile for mixed fleets without turbo issues.

What if I drive in extreme cold?
It flows well at -20°C and lower, preventing hard starts and wear.