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News Topical, Digital Desk : The central government has made it mandatory to sell E20 petrol (20% ethanol blended) with a minimum RON (Research Octane Number) of 95 across the country from April 1, 2026.
The Oil Ministry, in its notification dated February 17, has clearly directed that all oil companies will sell petrol with up to 20 per cent ethanol, with a minimum Research Octane Number (RON) of 95, as per the standards of the Bureau of Indian Standards (BIS).
This rule will apply to all states and union territories. The price of E20 petrol could range from ₹97 to ₹106 per liter. The government has also stated that exemptions may be granted under special circumstances, for a limited time, and in specific areas.
Why was this decision taken?
- Ethanol is made from sugarcane, corn and grains.
- It is produced in the country itself and burns cleaner than petrol.
- This reduces the import of crude oil.
- Helps in reducing pollution.
- Farmers benefit as demand for sugarcane and maize increases.
According to the Oil Ministry, India has saved more than Rs 1.40 lakh crore in foreign exchange by blending ethanol with petrol from 2014-15 till now.
Why is RON 95 important?
RON, or Research Octane Number, measures a fuel's ability to resist knocking. Knocking occurs when fuel burns unevenly in the engine, causing noise, reduced power, and long-term engine damage.
The higher the RON, the better the engine protection. Ethanol has an octane value of around 108 RON, so a 20% blend improves the quality of petrol.
What is the effect on vehicles?
According to industry officials, most vehicles manufactured after 2023-25 are E20-compliant and will not experience any major problems. However, older vehicles may experience a 3-7% reduction in mileage and minor damage to rubber or plastic parts.
The government achieved its 10% ethanol blending target ahead of schedule in June 2022. The 20% target was subsequently pushed back from 2030 to 2025-26. Currently, E20 is available at most petrol pumps in the country.
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