India's E20 Petrol Rollout Was Premature for Older Vehicles, Says Former NITI Official

India's recent shift to making E20 the only regular petrol-blend available nationally happened too quickly, according to Randheer Singh, former Director of Electric Mobility and Clean Energy at NITI Aayog and current Founder & CEO of ForeSee Advisors. Speaking during a webinar, Singh highlighted that out of an estimated 19 crore petrol vehicles in India, nearly 12 crore were purchased before E20-compliant models became the norm, leaving these older vehicle owners without an easy lower-ethanol alternative.

India achieved its 20 per cent ethanol blending target five years ahead of the original 2030 goal. However, this fuel transition has outpaced the natural replacement cycle of cars and two-wheelers, which typically remain on Indian roads for 10 to 15 years. Singh advised vehicle owners caught in this transition not to panic-sell otherwise serviceable vehicles.

Addressing the possibility of a parallel E10 supply for older vehicles—particularly an estimated 7.5 to 8 crore older two-wheelers—Singh stated that maintaining separate refinery, depot, tanker, and retail infrastructure for two distinct petrol blends would be difficult. He added that he does not expect E10 to return alongside E20 anytime soon.

The rapid transition also leaves open the question of who bears the financial responsibility if an older, out-of-warranty vehicle experiences fuel-system issues linked to E20 use. Singh noted that while there is no evidence of widespread engine failures, the absence of breakdowns does not automatically mean every older model was designed, calibrated, and material-certified for E20.

Furthermore, fuel compatibility does not equate to optimization. Singh estimated a mileage loss of about 1 to 2 per cent for E20-optimised vehicles, rising to roughly 5 to 6 per cent for compatible but non-optimised models, with some older vehicles potentially facing higher drops. For vehicle owners driving 20 to 40 kilometers daily, this extra fuel cost may remain too small to justify replacing a functioning vehicle, whereas higher-mileage users might find a stronger economic reason to switch.

Singh does not anticipate that E20 alone will cause a sharp crash in used-vehicle values, noting that millions of older vehicles will continue operating, though municipal age or fitness restrictions pose a larger risk to residual values. When vehicle replacement eventually becomes necessary, he advised buyers not to abandon petrol purely out of fear of E20, suggesting they select vehicles explicitly engineered for E20 if their usage patterns favor petrol.

For city users evaluating electric vehicles, Singh pointed out that EV total-cost economics are increasingly favorable and provide insulation against future shifts in fuel-blending policy. He noted that the Battery-as-a-Service (BaaS) model, which decouples the battery cost from upfront vehicle pricing and charges users per kilometer, helps mitigate uncertainty surrounding battery health and replacement costs. He cited the MG Windsor as an early successful implementation of this business model.

"The transition to E20 fuel highlights the operational friction that occurs when national environmental policies outpace the replacement lifecycle of existing consumer assets. For business leaders and automotive stakeholders, this situation underscores the importance of supply chain readiness and infrastructure planning during large-scale regulatory shifts. While fuel-blend changes introduce short-term uncertainties regarding vehicle compatibility and mileage for millions of vehicle owners, they also accelerate structural shifts toward alternative business models such as Battery-as-a-Service in the mobility sector." — Dr. Shishir Gupta, Founder & CEO, StartupLanes