Discover WOLF GUARDTECH 15W40 SL/CF 4L: Reliable Engine Protection for Everyday Driving

Purpose and Specifications

Keep your engine running smooth and strong with WOLF GUARDTECH 15W40 SL/CF 4L, a high-quality mineral-based engine oil perfect for gasoline and diesel cars, light trucks, and mixed fleets. This robust 15W40 viscosity oil flows easily in cold starts down to -20°C and stays thick up to 150°C under heavy loads, cutting wear by protecting pistons, valves, and turbochargers from sludge, soot, and deposits.

Approved for major brands including FIAT 9.55535-D2/G2, MB 229.1, PSA B71 2295, VW 501.01/505.00, plus ACEA A3/B3/B4 and API SL/CF specs, it delivers total engine cleanliness and durability for multi-valve, turbo, or naturally aspirated 4-stroke engines. The 4-liter pack suits most passenger cars, offering great value in the budget class from trusted manufacturer WOLF (part 8300219).

• Cold weather performance: Pumps smoothly at -20°C for reliable winter starts
• High-heat stability: Maintains protection during hot commutes or towing up to 150°C
• Cleaning power: Prevents buildup for longer engine life
• Shelf life: 5 years unopened in cool, dry storage

When to Use / Replace?

Use this oil in everyday drivers, older gasoline cars, light diesels, or fleet vehicles needing proven, affordable protection. Ideal for mixed gasoline/diesel use with biodiesel compatibility. Replace every 10,000-15,000 km or 12 months, or sooner if towing heavy loads or in dusty/hot conditions (check your owner's manual). Drain old oil fully for best results.

Frequently Asked Questions

Is WOLF GUARDTECH 15W40 SL/CF safe for my turbo diesel?
Yes, it protects turbochargers and meets VW 505.00 and ACEA B4 for boosted diesels, reducing soot and wear.

Can I use it year-round?
Absolutely, the 15W40 grade handles -20°C winters to 150°C summers without thinning out.

How often should I change it?
Every 10,000-15,000 km or annually for normal driving; monitor oil level monthly.