Allahabad University Alumnus Creates Engine with Amazing 176 KMPL Mileage
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Shailendra Singh Gaur, an alumnus of Allahabad University, has reportedly created a revolutionary six-stroke internal combustion engine that delivers 176 kilometres per litre (KMPL)—a dramatic leap from typical bike mileage of 60–75 KMPL.
Gaur graduated in 1983 with a B.Sc. in Physics, Chemistry, and Mathematics. In 2007, he turned down a job offer from Tata Motors. Instead, he made his rented home a makeshift laboratory, sacrificing his land, house, and shop in pursuit of this innovation.
Under the guidance of professors from MNNIT and IIT-BHU, Gaur developed the prototype using a 2017 TVS 100 cc motorcycle. During tests, the bike ran 35 minutes on only 50 ml of petrol—equating to roughly 176 KMPL. In a televised demonstration, the modified bike traveled 120 km on one litre of fuel; previously, it could only run for just over 12 minutes idle on the same amount.
Gaur explains that his engine nearly doubles thermal efficiency—from 30 % to about 70 %—by adding extra expansion and exhaust strokes. This design reduces heat loss, improves fuel atomization, and significantly cuts emissions.
The Government of India has granted two patents for Gaur’s engine, with more pending. The engine is designed to be modular, potentially adaptable to motorcycles, cars, buses, and marine vehicles, offering both environmental and economic benefits if commercialized.
Now, Gaur is seeking support from the government, industry leaders, and investors to scale this breakthrough from prototype to mass production. Without such backing, he warns, the innovation may remain unrealized.
