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Relevance: GS-III (Indian Economy, Energy Security, Environment, Indigenization of Tech) Source: Economic & Environment Reviews, July 2026

1 · What exactly happened?

India is aggressively mixing ethanol (alcohol made from farm crops like sugarcane) into our daily petrol to reduce our dependence on imported oil.

However, there is a big problem: We are rushing it. While Brazil (a global champion in biofuels) took 50 long years to smoothly shift its citizens to a 30% ethanol blend, India pushed its petrol pumps from a 5% to a 20% blend (called E20) in just 6 years. Because of this hurried target, everyday Indian motorists are suddenly facing engine troubles and lower mileage.

2 · Understanding the Friction: India vs. Brazil

Ethanol Blended Petrol (EBP) simply means mixing farm-made alcohol with petrol. E20 means 20% ethanol and 80% petrol. To handle high ethanol, cars need special engines called Flex-Fuel Vehicles (FFVs). Here is why India is struggling while Brazil succeeded.

The Mileage Drop
Paying More for Less
Ethanol produces less energy than pure petrol. So, Indian drivers are noticing a sharp drop in their vehicle’s mileage (average). Worse, they are paying the same high price for this less efficient fuel!
Brazil’s Solution
Smart Cars & Pricing
In Brazil, 90% of cars are “Flex-Fuel,” meaning their engines automatically adjust to any ethanol mix. Also, Brazil sells pure ethanol 30% cheaper to make up for the mileage drop, keeping citizens happy.
The Danger to Engines
Old Bikes and Cars
Older Indian vehicles (made before April 2023) were never designed for E20. Over time, the high alcohol content eats away and corrodes the rubber and plastic parts inside the engine.
The Lack of Choice
Forced Transition
Unlike Brazil, where you can choose between pure petrol or ethanol mixes at the pump, Indian petrol pumps do not offer a pure petrol (E0) choice anymore. Everyone is forced to buy the blended fuel.

  • Why India still desperately needs Ethanol: Despite these speed bumps, blending ethanol is a masterstroke for our economy. It saves India lakhs of crores in foreign exchange because we don’t have to buy as much crude oil from the Middle East.
  • Helping our Farmers: By buying surplus sugarcane, maize, and damaged rice to make ethanol, the government ensures farmers get paid. It practically transforms our Annadatas (food providers) into Urjadatas (energy providers).
  • Cleaner Air: Ethanol burns much cleaner than crude oil. Pushing E20 helps India keep its global promise to fight climate change and achieve “Net-Zero” emissions by 2070.

UPSC Prelims Quick Facts
National Policy on Biofuels, 2018 The major policy driving this shift. A 2022 amendment aggressively pushed the E20 (20% ethanol) target forward from 2030 to the year 2025-26.
Allowed Ingredients To boost production, the policy allows ethanol to be made from sugarcane juice, corn, and even damaged food grains unfit for human consumption.
Flex-Fuel Vehicles (FFVs) Vehicles engineered with special sensors and non-corrosive engine parts that can seamlessly run on any mixture of petrol and ethanol.
PM JI-VAN Yojana A government scheme providing financial help to set up advanced factories that create ethanol from tough agricultural waste (2G ethanol).

MCQ Practice Question
Q. With reference to Ethanol Blended Petrol (EBP) and India’s Biofuel Policy, consider the following statements:

  1. E20 fuel implies a mixture containing 20% ethanol and 80% petrol.
  2. The National Policy on Biofuels strictly bans the use of damaged food grains for ethanol production to ensure food security.
  3. Ethanol has a lower energy density (calorific value) than pure petrol, which can lead to a drop in vehicle mileage.

Which of the statements given above is/are correct?
(a) 1 and 2 only    (b) 1 and 3 only    (c) 2 and 3 only    (d) 1, 2 and 3

Answer: (b) 1 and 3 only

  • Statement 1 — Correct: The number next to ‘E’ denotes the exact percentage of ethanol in the petrol blend. E20 means 20% ethanol.
  • Statement 2 — Incorrect (the trap): The 2018 policy actually expanded the allowed raw materials. It specifically permits the use of damaged food grains (like broken rice unfit for human consumption) to boost ethanol production.
  • Statement 3 — Correct: Because ethanol has a lower calorific value, you get less energy per drop compared to pure petrol, causing a noticeable drop in the vehicle’s mileage.
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