Archive · 22 Jul 2026
E20 petrol may reduce mileage in older vehicles, says government
The Indian government has said that E20 petrol, which has 20% ethanol, might make older cars go a little less distance on a full tank, but it won't hurt the engine.
They say this happens in some older cars made for E10 petrol, which has less ethanol.
The government also says E20 petrol has some good things, like making the car run smoother.
But some people are worried and say E20 petrol is bad, even though they haven't shown any proof.
The government says these worries are not true and are being spread to make people think badly about E20 petrol.
E20 petrol may reduce fuel efficiency by 3-5% in older vehicles designed for E10 fuel.
No verified evidence of widespread engine damage or vehicle breakdowns due to E20 petrol.
Fuel efficiency depends on multiple factors, not just ethanol content.
E20 petrol offers advantages like higher octane rating and better combustion characteristics.
Critics claim E20 petrol reduces fuel efficiency and damages vehicles, but no specific evidence has been provided.
- Who
- The Central Government of India, including Minister of State for Petroleum and Natural Gas Suresh Gopi and Union Road Transport and Highways Minister Nitin Gadkari.
- What
- The potential impact of E20 petrol on fuel efficiency and vehicle performance.
- When
- The information was provided in a written reply to questions in the Rajya Sabha and during the Viksit Bharat Conclave on July 7.
- Where
- New Delhi, India.
- Why
- To address concerns and provide clarity on the effects of E20 petrol on vehicles.
Government's Stance
Critics' Concerns
Fuel Efficiency
Government's Stance
The government states that E20 petrol may lead to a marginal reduction in fuel efficiency (3-5%) in older vehicles designed for E10 fuel, but no widespread engine damage has been verified.
Critics' Concerns
Critics claim that E20 petrol reduces fuel efficiency and have raised concerns about potential vehicle damage, though no specific evidence has been provided.
Vehicle Performance
Government's Stance
The government asserts that E20 petrol offers advantages such as higher octane rating, improved anti-knock performance, better combustion characteristics, and smoother acceleration.
Critics' Concerns
Critics argue that these benefits do not outweigh the potential negative impacts on older vehicles, though they have not presented concrete evidence of damage.
- E20 Petrol
- Petrol blended with 20% ethanol.
- E10 Petrol
- Petrol blended with 10% ethanol.
- Fuel Efficiency Reduction
- Marginal reduction of 3-5% in older vehicles.
- Minister of State for Petroleum and Natural Gas
- Suresh Gopi
- Union Road Transport and Highways Minister
- Nitin Gadkari
- Event
- Viksit Bharat Conclave
- Date of Event
- July 7
- Location of Event
- New Delhi