There are credible media reports confirming that Shailendra Singh Gaur, an independent innovator from Prayagraj, has developed a six-stroke engine delivering an extraordinary mileage of 176 km per liter, with claims it could reach up to 200 km/l under further refinement. He’s also been granted two Indian patents for his invention.

There are credible media reports confirming that Shailendra Singh Gaur, an independent innovator from Prayagraj, has developed a six-stroke engine delivering an extraordinary mileage of 176 km per liter, with claims it could reach up to 200 km/l under further refinement. He’s also been granted two Indian patents for his invention. 

What's genuine about the story:

Extensive media coverage: Outlets like TCO News, Live Hindustan, The Daily Jagran, FamePublish, Organiser, and others have reported on Gaur’s engine, his personal sacrifices, technical details, and patent status. 

Technical and personal background: Gaur, an Allahabad University alumnus (B.Sc. 1983), declined a job at Tata Motors in 2007 to pursue independent research. He transformed his rented home into a lab, sold property to fund his work, and collaborated with MNNIT and IIT-BHU faculty. 

Prototype tests: On a 2017-model TVS 100 cc bike, his engine reportedly achieved 176 km per liter — running 35 minutes on just 50 ml of petrol — compared to only ~12 minutes with a standard engine. A televised demo showed 120 km per liter. 

Claims of efficiency and low emissions: Gaur claims his engine uses ~70% of fuel energy (versus ~30% in typical four-stroke engines), and has near-zero carbon monoxide emissions. 

Patents: He has two patents granted by the Government of India — one for the engine design and another for the process — with additional patents pending. 

What remains uncertain:

Not independently verified yet: So far, there’s no evidence of independent, peer-reviewed validation of the engine’s actual performance in varied real-world conditions.

Commercial readiness unknown: The engine is still in the prototype phase. There is no widespread adoption or production by automotive companies.

Need for further support: Gaur is reportedly seeking funding, collaborators, and institutional backing to scale up the innovation. 

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So, is the story real?

Yes, the story is real in the sense that reputable sources have documented Gaur’s claims, his long-term efforts, the prototypes, and patent awards. However, the transformative performance—such as achieving ~176 km/l mileage and near-zero emissions—has not yet been independently validated or commercialized.

This is a remarkable and inspiring innovation story, but as with any groundbreaking technology, the claims need rigorous testing, validation, and support to move from proof-of-concept to real-world impact.