India's ethanol-blending debate has a new flashpoint. Union Road Transport Minister Nitin Gadkari, the programme's most vocal champion, said this week that motorists who do not want ethanol-blended E20 petrol are free to buy 100 per cent petrol instead - but they will have to pay more for the privilege. The remarks, made in an interview with The Times of India on July 15, land in the middle of rising unease among vehicle owners and sections of the automotive community about what the 20 per cent ethanol blend means for mileage, engine health and older vehicles.

What Gadkari actually said

The minister's core message was a defence of the programme paired with a consumer choice argument. Claims that E20 damages vehicle engines were dismissed as misinformation, with Gadkari asserting that the government has not received complaints on that front. He characterised the campaign against ethanol blending as politically motivated. And on the question of choice, his answer was blunt: unblended petrol has not been banned - high-octane, ethanol-free fuels remain on sale - but they are premium products. In metro cities, 100-octane fuels retail at roughly Rs 167 to Rs 170 per litre, a markup of around 60 per cent over regular pump petrol.

Gadkari also addressed a more personal line of criticism directly. Responding to suggestions of a conflict of interest, he said ethanol accounts for only around 10 per cent of his family's business interests, and that the factories run by his sons hold less than half a per cent of India's ethanol market.

The concerns driving the backlash

The pushback against E20 is not purely political theatre. The Ministry of Petroleum and Natural Gas has itself acknowledged that E20 can reduce fuel efficiency by up to 5 per cent in some vehicles, since ethanol carries less energy per litre than petrol. Owners of older vehicles - designed and warrantied for E10 or unblended fuel - worry about material compatibility in fuel lines, seals and injection systems over long-term use. And because the pump price of E20 is not proportionally lower than petrol, a mileage penalty translates directly into a higher effective cost per kilometre for affected drivers, a point critics return to repeatedly.

  • Mileage: the petroleum ministry concedes a drop of up to 5 per cent in some vehicles running E20.
  • Compatibility: vehicles built before E20-readiness norms may face long-term wear concerns, though the government maintains there is no evidence of engine damage.
  • Price of opting out: ethanol-free 100-octane fuel costs about Rs 167-170 per litre in metros - a roughly 60 per cent premium.
  • Official stance: no complaints received, engine-damage claims are misinformation, and the programme continues.

Why the government will not blink

Whatever the pump-level grievances, the strategic logic of ethanol blending remains powerful in New Delhi's calculus. Every litre of ethanol displaces imported crude in a country that buys most of its oil abroad, and the foreign-exchange savings of the blending programme are counted in tens of thousands of crores. The agricultural constituency is just as important: ethanol demand has become a structural source of income for sugarcane growers and, increasingly, for grain-based distilleries, giving the programme a rural political base that both major parties court. India reached its 20 per cent blending milestone well ahead of the original 2030 timetable, and the official conversation has already moved to what comes next - flex-fuel vehicles and higher blends - rather than whether E20 should be rolled back.

What it means for vehicle owners

For most owners of recent vehicles, the practical impact of E20 is a modest mileage reduction; manufacturers have been shipping E20-compatible engines for several years, and warranties on new vehicles reflect that. Owners of older two-wheelers and cars have a genuinely harder set of choices: absorb the efficiency penalty, pay the steep premium for unblended high-octane fuel, or plan an earlier upgrade than they intended. What Gadkari's remarks make clear is that the policy direction is settled - the choice being offered to consumers is not whether India blends ethanol, but how much they are willing to pay to avoid it.