Overview
Diesel D6, commonly referred to as Virgin Fuel Oil, is a heavy residual fuel oil derived from crude distillation. Due to its high viscosity and density, it is primarily used in power generation, marine bunkering, and large-scale industrial applications where cost-efficient, high-energy fuel is required.

Technical Characteristics

• Grade: D6 Virgin Fuel Oil
• Viscosity: ~30–40 cSt @ 40°C (requires pre-heating for handling and combustion)
• Density: ~0.96–1.01 g/cm³ at 15°C
• Sulfur Content: Typically 2.0–3.0% (regional variation may apply)
• Flash Point: Above 65°C
• Pour Point: −6°C to +30°C (depending on blend)
• Ash Content: ≤ 0.10% by weight
• Carbon Residue (Conradson): ≤ 20% by weight
• Water Content: ≤ 1.0% by volume

Applications

• Power Generation: Fuel for heavy-duty generators and turbines
• Marine Industry: Bunker fuel for ships and ocean-going vessels
• Industrial Use: Boilers, furnaces, and large-scale heating systems
• Energy Production: Often blended or processed into lighter fuels and distillates

Handling & Storage

• Requires heating systems for storage tanks and pipelines due to viscosity
• Best maintained at 40–60°C for efficient pumping and atomization
• Must be stored in sealed tanks to prevent contamination and water ingress

Compliance & Testing

• Quality typically verified through ASTM and ISO testing standards (e.g., ASTM D445 for viscosity, ASTM D4294 for sulfur content)
• Supplied with third-party inspection reports such as SGS or CIQ for Quality & Quantity (Q&Q) confirmation

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