Diesel Fuel or Gasoil

Description

Comprehensive Guide to Euro 4 & Euro 5 Diesel Fuel Supplied by the National Iranian Oil Refining and Distribution Company (NIOPDC)

Technical Analysis, Industrial Applications, Export Markets, and Full EN-590 Standard Review

General Introduction to Iranian Export Diesel Fuel (Euro IV & Euro V)

Diesel fuel, also known as Gas Oil or Diesel Fuel, is one of the world’s most strategic petroleum products in the refining industry. In Iran, official export-grade diesel fuel is supplied by the National Iranian Oil Refining and Distribution Company (NIORDC), the entity responsible for production, quality control, storage, and distribution of refined petroleum products across the country.

The two main export grades are:

✅ Euro 4 Diesel (Euro IV)
✅ Euro 5 Diesel (Euro V)

Both products are produced according to the European EN-590 standard, which is recognized globally as the benchmark for modern diesel fuel quality.

Fundamental Difference Between Euro 4 and Euro 5 Standards

Before analyzing the specifications, it is important to understand the philosophy behind these two standards.

✔ Euro 4 → Reduced emissions compared to older diesel generations
✔ Euro 5 → Major advancement in sulfur and particulate emission control

The most important difference is sulfur content:

Reducing sulfur to 10 ppm provides several major benefits:

✅ Longer DPF filter life
✅ Cleaner combustion process
✅ Access to European and Asian export markets

Euro 4 Diesel Specifications — Full Technical Analysis

The following table is based directly on official product documentation.

Gas Oil Euro IV Technical Specifications (EN-590:2008)

Technical Analysis of Euro 4 Specifications

Cetane Number (≥51)

This parameter indicates combustion quality.

✔ Faster engine ignition
✔ Reduced diesel engine noise
✔ Lower fuel consumption

A cetane number of 51 fully complies with European diesel fuel standards.

Density (820–845 kg/m³)

Density determines:

✅ Energy content per liter of fuel
✅ Transportation efficiency in marine and land logistics

Iranian diesel within this range provides an excellent balance between calorific value and pumping performance.

Viscosity (2–4.5 mm²/s)

If viscosity is too low → pump wear increases
If viscosity is too high → poor fuel atomization occurs

This range is considered optimal for:

✔ Heavy-duty trucks
✔ Industrial generators
✔ Mining machinery

Flash Point (≥55°C)

A critical export advantage:

✅ High storage safety
✅ Reduced marine transportation risk

Sulfur ≤50 ppm

This is the most important environmental parameter in Euro 4 diesel.

Lower sulfur means:

✔ Reduced SOx emissions
✔ Lower acid rain impact
✔ Better compatibility with IMO marine regulations

Poly Aromatics ≤11%

These compounds are major contributors to soot formation.

Lower levels provide:

✅ Cleaner combustion
✅ Reduced smoke emissions
✅ Less injector fouling

Biodiesel Content (FAME ≤5%)

A controlled FAME content improves:

✔ Fuel lubricity
✔ Reduced engine friction

Euro 5 Diesel Specifications — Full Technical Analysis

Gas Oil Euro V Specifications (EN-590:2014)

Technical Analysis of Euro 5 Specifications

Sulfur Reduction to 10 ppm — A Major Transformation

This is the most significant advancement in Euro 5 diesel.

Results include:

✅ Suitable for modern European vehicles
✅ Easier access to strict international markets
✅ Full compatibility with SCR and DPF systems

In practice, Euro 5 belongs to the Ultra Low Sulfur Diesel (ULSD) category.

Poly Aromatics ≤8%

Euro 5 contains lower aromatic compounds.

Advantages:

✔ Significantly reduced exhaust smoke
✔ Lower urban pollution
✔ Longer turbocharger lifespan

Oxidation Stability ≥20 Hours

This feature is extremely important for export logistics:

✅ Long-term storage capability
✅ Resistance to chemical degradation
✅ Ideal for long-distance marine transportation

Biodiesel Blending up to 7%

Euro 5 offers greater flexibility for renewable fuel blending.

This enables:

✔ Easier energy transition
✔ Better compliance with European carbon policies

Final Comparison: Euro 4 vs Euro 5

Professional Conclusion

✅ Euro 4 → Cost-effective regional fuel
✅ Euro 5 → Premium export-grade diesel fuel

Industrial Applications of Euro 4 and Euro 5 Diesel Fuel

Land Transportation

The world’s largest diesel-consuming sector:

✔ Heavy-duty trucks
✔ Buses
✔ Construction machinery

Euro 5 is specifically designed for modern European fleets.

Diesel Power Plants

Many developing countries rely heavily on:

✅ Emergency diesel generators
✅ Island power generation
✅ Oil & gas EPC projects

Mining and Construction Industries

Equipment such as:

✔ Excavators
✔ Dump Trucks
✔ Drilling Rigs

require stable high-cetane diesel fuel.

Marine Industry (Marine Gas Oil)

In many ports, the following vessels use EN-590 diesel fuel:

✔ Small ships
✔ Service vessels
✔ Offshore supply vessels

Modern Agriculture

Diesel-powered agricultural machinery requires:

✅ High fuel stability
✅ Reliable combustion performance

Importing Countries for Iranian Diesel Fuel

Iran’s diesel export market covers a wide range of countries. The countries listed below are only examples. We respond to inquiries from all countries and can arrange supply accordingly.

Regional Markets (Primary Markets)

✅ Iraq
✅ Afghanistan
✅ Pakistan
✅ Armenia
✅ Azerbaijan
✅ Turkey

Central Asia

✔ Turkmenistan
✔ Uzbekistan
✔ Tajikistan

These countries have limited refining capacity and remain net importers.

African Market

One of the fastest-growing global demand regions:

✅ Kenya
✅ Tanzania
✅ Mozambique
✅ Ghana
✅ Senegal

Reasons:

⚡ Insufficient refining capacity
⚡ Strong dependence on fuel imports

South and Southeast Asia

✔ UAE (Re-export Hub)
✔ Singapore
✔ Malaysia
✔ Sri Lanka

Europe (For Euro 5)

Depending on commercial logistics:

✅ Eastern Europe
✅ Mediterranean region

Competitive Advantages of Iranian Diesel Fuel in the Global Market

Advanced Refining Quality

Iranian refineries are equipped with:

✔ Hydrodesulfurization units
✔ Hydrocrackers
✔ Catalytic Reforming systems

Supply Stability

One of the most important factors in energy contracts:

✅ Continuous production
✅ Extensive storage infrastructure
✅ Official delivery through NIORDC terminals

Logistics Advantage

Iran has strategic access to:

✔ Persian Gulf
✔ Oman Sea
✔ Central Asian land corridors

Competitive Global Pricing

Due to:

✔ Direct access to crude oil
✔ Lower refining costs

Why Professional Buyers Prefer Euro 5

Because:

✅ Global environmental regulations are becoming stricter
✅ Modern ships and trucks require ULSD
✅ Carbon taxation policies in Europe are increasing

Euro 5 is effectively the future of the diesel market.

Final Energy Industry Analysis

From a professional energy-market perspective:

✔ Euro 4 remains an economical fuel for regional markets.
✔ Euro 5 is considered a strategic next-generation export fuel.

What is genuinely impressive:

✅ Full compliance of Iranian diesel specifications with EN-590 standards
✅ Simultaneous production capability for multiple export grades
✅ Strong flexibility in responding to global energy market demands