Researchers at the Indian Institute of Technology Kanpur found no evidence that E20 ethanol-blended fuel damages engines in new or older vehicles [1, 2].

This finding addresses widespread consumer anxiety regarding the government-promoted fuel blend. As India pushes for higher ethanol integration to reduce oil imports, misinformation regarding engine longevity and efficiency has influenced purchasing behavior [3, 5].

The study, reported last month, concluded that any drop in fuel mileage resulting from the use of E20 fuel is marginal, remaining at less than five percent [1]. This data counters viral claims suggesting that the blend leads to severe engine degradation or significant loss of efficiency [2, 5].

Despite these technical findings, public perception remains a hurdle for the transition. A survey indicated that 43% of prospective car buyers may defer or avoid purchasing a new vehicle due to concerns about E20 or E30 fuel [3].

The research was conducted to assess the safety and efficiency impacts of the blend and to debunk myths circulating online. These myths included claims of severe mechanical failure and even viral reports of ants entering fuel tanks due to the ethanol content, which BPCL has previously debunked [4, 5].

IIT Kanpur researchers focused on both modern engines and older vehicle models to ensure the blend is compatible across the existing fleet [1, 2]. The results suggest that the fuel is safe for general use without requiring major mechanical overhauls for most vehicles [2].

“Mileage drop with E20 fuel is less than five percent”

The gap between scientific data and consumer confidence suggests that technical validation alone is insufficient for the adoption of E20 fuel. While IIT Kanpur has provided empirical evidence that the fuel is safe and efficient, the high percentage of deterred buyers indicates that government and industry stakeholders must prioritize transparent communication to prevent a slowdown in the automotive market.