The Indian Army is addressing one of the biggest challenges of traditional diesel fuel: its tendency to thicken and clog fuel filters in extreme cold.
Chief of the Army Staff General Dhiraj Seth recently introduced Xtreme Weather Grade (XWG) Diesel, a specialized fuel designed to remain effective at temperatures as low as -42 degrees Celsius (-43.6 degrees Fahrenheit).
The fuel reportedly meets national emission and quality standards, allowing it to be used across existing vehicle fleets without engine modifications or re-certification.

Jointly developed by the Indian Army and Oil Marketing Companies, XWG Diesel is intended to improve the performance and operational readiness of combat and logistics vehicles.
It could also be adapted for civilian use in high-altitude and harsh winter regions.
Bolstering India’s Atmanirbhar Bharat
At the unveiling in New Delhi, Seth described the fuel as a “game-changing” indigenous innovation capable of improving mobility, readiness, and reliability.
He also commended the development team for delivering the project within a year, saying the collaboration could pave the way for future fuel technologies tailored to different operational needs.

According to Seth, XWG Diesel eliminates many of the measures typically required to keep vehicles operational in extreme cold while improving personnel safety and morale.
The fuel marks another milestone under Atmanirbhar Bharat, India’s national initiative to strengthen domestic defense manufacturing and reduce reliance on foreign technology.