Diesel and Biodiesel Fuels

Written by Rahul Verma | Updated: February 12, 2026

Diesel and Biodiesel Fuels

Written by Rahul Verma |  Updated: February 12, 2026

Diesel engines are the most commonly used engines in the world due to their high efficiency, reliability, and durability. Diesel fuel comprises various hydrocarbons, ranging from light distillates such as No. 1 Diesel to heavy residuals such as Bunker C or No. 5 Fuel Oil. To comply with regulations set by Diesel Motor Fuels, sulfur levels must be kept low.
Biodiesel Blend Stock is derived from vegetable oil and animal fats and is blended with petroleum distillate fuels to produce a fuel that meets the required sulfur levels. Biodiesel B 100 Blend Stock is available in two grades, S15 and S500, with a sulfur content of less than 15 ppm (0.0015 wt%) and 500 ppm (0.05 wt %), respectively. According to ASTM Specification D 6751-08, up to 5% Biodiesel is permitted for use in No. 1 and No. 2 grades of Diesel Fuel. The test method EN 14078 for Fatty Acid Methyl Esters (FAME) is used to determine the percentage of biodiesel present in diesel fuel.

Read more: Biodiesel Testing
The use of biodiesel blend stock in diesel fuel has several advantages. Compared to regular diesel fuel, biodiesel has a reduced carbon footprint and is renewable. Biodiesel is also safer to handle, has superior lubricity properties, and is biodegradable. In addition, using biodiesel blend stock helps reduce emissions of pollutants such as unburned hydrocarbons, carbon monoxide, and particulate matter.

Diesel and Biodiesel Fuels

Diesel engines are the most commonly used engines in the world due to their high efficiency, reliability, and durability. Diesel fuel comprises various hydrocarbons, ranging from light distillates such as No. 1 Diesel to heavy residuals such as Bunker C or No. 5 Fuel Oil. To comply with regulations set by Diesel Motor Fuels, sulfur levels must be kept low.
Biodiesel Blend Stock is derived from vegetable oil and animal fats and is blended with petroleum distillate fuels to produce a fuel that meets the required sulfur levels. Biodiesel B 100 Blend Stock is available in two grades, S15 and S500, with a sulfur content of less than 15 ppm (0.0015 wt%) and 500 ppm (0.05 wt %), respectively. According to ASTM Specification D 6751-08, up to 5% Biodiesel is permitted for use in No. 1 and No. 2 grades of Diesel Fuel. The test method EN 14078 for Fatty Acid Methyl Esters (FAME) is used to determine the percentage of biodiesel present in diesel fuel.

Read more: Biodiesel Testing
The use of biodiesel blend stock in diesel fuel has several advantages. Compared to regular diesel fuel, biodiesel has a reduced carbon footprint and is renewable. Biodiesel is also safer to handle, has superior lubricity properties, and is biodegradable. In addition, using biodiesel blend stock helps reduce emissions of pollutants such as unburned hydrocarbons, carbon monoxide, and particulate matter.

ABOUT AUTHOR

Rahul Verma

Rahul Verma is a dedicated Materials Scientist and Testing Associate with strong expertise in materials characterization, thermal spray coatings, and advanced manufacturing technologies. With a solid foundation in Materials Science & Engineering and hands-on research in additive manufacturing, he specializes in bridging material behavior insights with practical engineering solutions. Currently serving as a Materials Testing Associate at Infinita Lab Inc. (USA), Rahul ensures precise material testing, quality assurance, and customer-focused solutions that help clients overcome complex materials challenges.

His role blends technical rigor with operations and project management, driving efficiency, reliability, and client satisfaction. Rahul’s journey spans academic and industrial research at IIT Patna, where he has contributed to advancements in plasma spray techniques, AI/ML-driven material design, and additive manufacturing.

He has also co-founded GreeNext Materials Group, pioneering sustainable battery regeneration technologies that have a significant impact on both industrial and societal applications. With professional experience in operations leadership, R&D, and client engagement, Rahul brings a results-oriented and analytical approach to materials engineering. He continues to advance innovation in coatings, material performance, and testing methodologies—focusing on durability, sustainability, and real-world applications.

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