Diesel Fuel Testing

Comprehensive analysis for automotive, marine and industrial diesel fuels to ensure performance and regulatory compliance.

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Diesel Fuel Testing Laboratory
Diesel Quality Experts

Precision Diesel Analysis

Accredited testing for D2, D6, ultra low sulfur diesel, marine gas oil, and biodiesel blends. Ensuring performance and compliance.

Comprehensive Diesel Fuel Testing

Gebo Inspection Services provides complete diesel fuel analysis in accordance with international specifications including ASTM D975 (automotive diesel), EN 590 (European automotive), and ISO 8217 (marine fuels). Our ISO 17025 accredited laboratories use advanced instrumentation to deliver accurate results with fast turnaround.

We support the entire diesel supply chain – from refineries and storage terminals to distributors and end-users. Our services include routine specification testing, contamination screening, problem-solving analysis, and on‑site sampling. We also provide expert witness testimony for fuel quality disputes.

Key Tests for Diesel Fuel

  • Cetane Index / Cetane Number
  • Cloud Point & Cold Filter Plugging Point
  • Flash Point
  • Distillation / Boiling Range
  • Density / API Gravity / Specific Gravity
  • Total Sulfur (Ultra Low Sulfur)
  • Viscosity (40°C and 100°C)
  • Water & Sediment
  • Copper Corrosion
  • Ash Content
  • Carbon Residue (Ramsbottom)
  • Microbial Contamination (Aerobic & Anaerobic)

We also offer specialized tests for marine fuels (ISO 8217), biodiesel blends (EN 14214, ASTM D6751), and lubricity analysis. Our rapid response team can mobilize to your location for sampling at any stage of the supply chain.

Frequently Asked Questions

We test to ASTM D975 (automotive diesel), EN 590 (European automotive diesel), ISO 8217 (marine fuels), and other regional or customer-specific specifications. We also test biodiesel blends to EN 14214 or ASTM D6751.

Routine specification testing is typically completed within 24–48 hours of sample receipt. Rush services are available for urgent needs. Microbial and other specialized tests may require additional time.

Yes. Our trained inspectors can perform on‑site sampling at refineries, terminals, storage facilities, and vessels worldwide, following strict chain-of-custody and safety protocols.

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