Connecting Buyers with Reliable Diesel Fuel Suppliers Worldwide
We facilitate seamless transactions for Ultra Low Sulfur Diesel (ULSD), Low Sulfur Diesel (LSD), and other widely used diesel products, ensuring competitive pricing, timely delivery, and compliance with international fuel standards. Whether for commercial fleets, industrial machinery, or generators, Alta Group® provides reliable, cost-effective solutions for your diesel fuel needs.
Commonly sold Diesel types
Ultra Low Sulfur Diesel (ULSD) – EN590
Ultra Low Sulfur Diesel (ULSD) is the most widely used diesel fuel type in many countries, especially in North America and Europe, where stringent environmental regulations have reduced sulfur content in fuels. ULSD contains a maximum of 15 parts per million (ppm) of sulfur, making it a cleaner-burning fuel compared to older diesel formulations.
The standard EN590 specifies the technical requirements for diesel fuel used in road vehicles across the European Union. EN590 is compatible with modern diesel engines and emission control systems, including diesel particulate filters (DPF) and selective catalytic reduction (SCR) systems. It is commonly used in trucks, buses, construction vehicles, and industrial machinery.
Key Specifications of ULSD (EN590):
Sulfur Content: ≤15 ppm (Ultra Low Sulfur)
Cetane Number: 51–55
Energy Content: Approx. 35.8 MJ/L
Density: 0.820–0.845 kg/L at 15°C
Flash Point: >55°C
Compliance: EN590 (EU standard) and EPA (US standard) for environmental emissions.
Benefits of ULSD:
Reduced Emissions: ULSD helps reduce harmful emissions, including particulate matter and nitrogen oxides (NOx).
Engine Compatibility: Works seamlessly with modern engines equipped with emission control technology.
Regulatory Compliance: ULSD meets EU and US environmental regulations, ensuring compliance with strict emissions standards.
Low Sulfur Diesel (LSD) – EN590 (Older Formulation) / ASTM D975
Low Sulfur Diesel (LSD) contains a maximum of 500 ppm of sulfur. While it has largely been phased out in favor of ULSD in developed regions, LSD is still used in countries with less stringent environmental controls or where infrastructure hasn’t fully transitioned to ULSD. In the European Union, older EN590 standards included LSD, but modern formulations are now ULSD.
In the United States, Low Sulfur Diesel is commonly specified under ASTM D975 for off-road machinery, agriculture, and construction applications.
Key Specifications of LSD (EN590/ASTM D975):
Sulfur Content: ≤500 ppm
Cetane Number: 40–55
Energy Content: Approx. 35.5–36.0 MJ/L
Density: 0.830–0.850 kg/L at 15°C
Flash Point: >55°C
Compliance: Meets older EN590 (for pre-2009 formulations in Europe) and ASTM D975 standards.
Benefits of LSD:
Cost-Effective: Generally more affordable than ULSD, making it a cost-effective option for older machinery or non-road applications.
Reliable Performance: Offers consistent performance for heavy-duty machinery and non-road vehicles.
Engine Compatibility: Can be used in older diesel engines that may not have advanced emissions control systems.
High Sulfur Diesel (HSD) – ISO 8217 (Marine/Off-Road)
High Sulfur Diesel (HSD) is diesel fuel with sulfur content exceeding 500 ppm. It is primarily used in regions with less stringent environmental controls or for applications like marine fuel or industrial machinery in emerging markets. HSDis commonly specified in ISO 8217 standards, particularly for marine fuel (MDO – Marine Diesel Oil) and off-road diesel.
While HSD is becoming increasingly rare in developed countries, it is still used extensively for large-scale off-road machinery, marine vessels, and mining operations.
Key Specifications of HSD (ISO 8217):
Sulfur Content: >500 ppm (up to 1,500 ppm depending on region and use case)
Cetane Number: 40–55
Energy Content: Approx. 35.5–36.5 MJ/L
Density: 0.845–0.860 kg/L at 15°C
Flash Point: >55°C
Compliance: Meets ISO 8217 standards for marine diesel and off-road diesel applications.
Benefits of HSD:
Lower Fuel Costs: As it has a higher sulfur content, HSD tends to be less expensive than ULSD and LSD.
Use in Older Engines: Ideal for older diesel engines and machinery that do not require stringent emissions controls.
Industrial Applications: Often used in mining, construction, and marine industries where emission controls are less enforced.
Why Choose us for Diesel Supply Mediation
Global Network
We connect you with top-quality diesel fuel suppliers from major oil-producing regions worldwide. Our relationships with refineries and distributors ensure competitive prices and consistent supply.
Tailored Solutions
We work with you to understand your exact fuel requirements and provide tailored diesel solutions, whether for on-road, off-road, or marine applications. Whether you need bulk diesel fuel or are sourcing smaller amounts for a fleet, Alta Group® ensures the best fit for your needs.
Secure Transactions
Alta Group® ensures that all diesel fuels sourced through our mediation comply with international environmental regulations and quality standards. Each shipment comes with the necessary certifications and quality controldocumentation to ensure fuel quality and safety.
Key Applications
Alta Group® supports a wide range of industries and applications with diesel fuel solutions:
Transportation
ULSD is widely used in on-road vehicles such as trucks, buses, and passenger vehicles. LSD and HSD are often used in off-road and commercial fleets.
Agriculture
Diesel fuels, particularly LSD and HSD, power agricultural machinery like tractors, harvesters, and irrigation systems.
Construction & Mining
Diesel is the preferred fuel for construction vehicles, excavators, bulldozers, and mining equipment that operate in remote locations.
Marine Industry
High Sulfur Diesel (HSD) is still commonly used as marine fuel for larger vessels and cargo ships due to fewer emission regulations in some regions.
Power Generation
Diesel generators use ULSD or LSD to provide backup power in industrial and residential settings.