First XWG Diesel Rake: Bharat Petroleum Corporation Limited (BPCL) has flagged off its first Extreme Weather Grade (XWG) Diesel rake from the Bina Refinery. It marks a new step in the supply of specialised fuel for Indian Army operations, during extreme winter and high-altitude environments.
The rake was flagged off on August 17, 2026, by Lt Gen Mukesh Chadha, AVSM, SM, VSM, Director General Supplies and Transport (DGST), Integrated Headquarters of the Ministry of Defence (Army). Senior officials from the Indian Army, Indian Railways, and BPCL were there too including Subhankar Sen, Director (Marketing), BPCL, at the event.
What Is Extreme Weather Grade Diesel?
Extreme Weather Grade Diesel, or XWG Diesel is a specialised diesel formulation meant to keep dependable performance when temperatures drop really fast sharply and suddenly.
BPCL’s Corporate Research & Development Centre (CRDC) and its Bina Refinery jointly developed the fuel after assessing the difficulties associated with operating military vehicles in extreme winter conditions.
The fuel is intended to address problems that conventional diesel can face in severe cold where changes in fuel properties can affect starting, filtration and vehicle performance.
Key Features of BPCL XWG Diesel
According to BPCL, the specialised diesel incorporates several characteristics designed for extreme-weather operations:
- Ultra-low pour point, helping the fuel remain suitable at very low temperatures.
- Low Cold Filter Plugging Point (CFPP), reducing the risk of fuel-filter blockage in cold conditions.
- Improved cold-startability for military vehicles.
- Enhanced drivability in severe climatic conditions.
- Reduced field maintenance requirements.
- Improved reliability for vehicles operating in extreme weather.
Subhankar Sen, Director (Marketing), BPCL, said, “The successful development of Extreme Weather Grade Diesel and the dispatch of the first rake is an excellent example of BPCL’s research capabilities, technological excellence and commitment to Atmanirbhar Bharat.” He added, “BPCL remains committed to providing innovative energy solutions aligned with the nation’s strategic requirements.”
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How Cold Weather Affects Diesel?
Diesel contains paraffinic components whose behaviour changes as temperatures fall. At sufficiently low temperatures, wax crystals can form and affect fuel flow and filtration.
One important measurement is the Cold Filter Plugging Point (CFPP), which indicates the lowest temperature at which a fuel can pass through a standardised filtration system under specified test conditions. XWG Diesel has been formulated specifically with these requirements in mind.
The broader XWG Diesel programme has been reported as being designed to remain effective at temperatures as low as minus 42°C. The Defence Ministry’s description, reported by PTI, also said the fuel complies with BS-VI standards and IS 1460:2025 specifications and can be used in the Indian Army’s existing vehicle fleet without engine modification or re-homologation.
Manoj Menon, Business Head (Industrial & Commercial Solutions), BPCL, said, “BPCL continues to work towards providing specialised energy solutions for the country’s strategic sectors, and ensuring uninterrupted and reliable fuel supplies to the Indian Armed Forces remains among its highest priorities.”
First XWG Diesel Rake: Bina Refinery’s Role
The Bina Refinery in Madhya Pradesh has played a central role in the production and dispatch of the specialised fuel.
“The flag-off of the first XWG Diesel rake is a moment of immense pride for Bina Refinery. This achievement is the result of excellent coordination and teamwork across BPCL’s research, refining, marketing and logistics functions,” said K. K. Das, Executive Director, BPCL Bina Refinery. He expressed confidence that Bina Refinery will continue to play a leading role in developing high-quality specialised products in the national interest.
BPCL has previously highlighted that XWG Diesel was developed in collaboration with the Indian Army to address fuel-performance challenges in extreme cold. The fuel was publicly launched in New Delhi on July 31, 2026, with Army Chief General Dhiraj Seth unveiling the indigenous fuel.
The August 17 rake dispatch is therefore the next operational milestone: moving the specialised fuel from the refinery into the military supply chain.
