Mobil Delvac Modern 15W-40 Super Defense V4 - Premium Diesel Engine Oil

Purpose and Specifications

What it does: This is a high-performance diesel engine oil designed for modern trucks, heavy equipment, and older diesel engines. It protects your engine from wear, heat damage, and sludge buildup while keeping your oil clean longer.

Viscosity Grade: 15W-40 means the oil flows easily in cold weather (15W rating) and maintains proper thickness at high engine temperatures (40 rating). This allows reliable cold starts and consistent protection year-round.

Key Protection Features:

• Thermal and oxidation stability: Resists breakdown at high temperatures, extending oil life and reducing sludge buildup
• Soot control: Handles carbon particles from combustion, preventing viscosity increase and maintaining oil pumpability
• Acid neutralization: Neutralizes harmful acids produced during combustion, protecting engine components from corrosion
• Wear protection: Maintains a protective film on engine parts even under extreme pressure and temperature
• Low-temperature flow: Provides reliable engine protection during cold starts down to -36°C

Meets Major Standards: API CF/CF-4/CG-4, ACEA B2/E3/E7, MB 228.3, Volvo VDS-2/VDS-3, Mack EO-M/EO-M+, MAN M3275-1, and Cummins specifications. Compatible with both low and high sulfur diesel fuel.

When to Use / Replace?

Best for: Modern turbo-diesel trucks, heavy-duty commercial vehicles, construction equipment, and older diesel engines. Works in both on-highway and off-road applications.

Replacement interval: Follow your vehicle manufacturer's recommendation, typically every 10,000-15,000 km or 6-12 months, whichever comes first. Modern low-emission engines with tight tolerances may require more frequent checks.

Operating temperature range: Performs reliably from -36°C (cold start) to over 100°C (normal engine operating temperature).

Storage: Keep in a cool, dry place. Unopened containers maintain quality for extended periods when stored properly.

Frequently Asked Questions

Q: Can I use this oil in gasoline engines?
A: Yes. While formulated primarily for diesel engines, this oil meets specifications for both modern diesel and gasoline engines, making it suitable for mixed fleets.

Q: Is this synthetic or mineral oil?
A: This is a high-performance synthetic technology oil, meaning it uses advanced base stocks and additives for superior protection compared to conventional mineral oils.

Q: Will this oil work in my older diesel engine?
A: Yes. This oil is specifically formulated to perform in both modern low-emission engines and older diesel engines, whether they run on low or high sulfur fuel.