Central government directs sale of 20% ethanol-blended petrol meeting RON 95 standard across all states from April 1, 2026
The Ministry of Petroleum and Natural Gas issued a notification on February 17 directing oil companies to sell E20 petrol nationwide. From April 1, 2026, all states and Union Territories must supply petrol blended with up to 20% ethanol that meets Bureau of Indian Standards specifications and maintains a minimum RON 95.
This step standardises fuel quality across India. It advances the ethanol blending programme, which achieved 10% blending ahead of schedule, and targets reduced crude oil imports and lower vehicular emissions.
Fuel Standardisation Across Regions
The mandate applies uniformly to petrol pumps everywhere. E20 petrol now becomes the standard offering at fuel stations. Oil marketing companies must ensure compliance with the specified ethanol percentage and octane rating. Limited exemptions may occur in special cases or regions for short periods.
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Vehicle Compatibility and Engine Protection
Most vehicles manufactured in India from 2023 onwards are designed for E20 petrol. The minimum RON 95 requirement helps protect engines from knocking and maintains performance. Older vehicles may face minor adjustments, but industry sources indicate no major widespread issues for post-2023 models.
The higher octane level in E20 petrol supports smoother combustion in compatible engines. This reduces potential long-term wear in fuel systems calibrated for ethanol blends.
Beyond the Spec Sheet
Daily commuters notice consistent fuel availability at pumps during city travel or highway trips. Long-distance movement becomes more predictable with uniform E20 petrol quality nationwide.
Vehicle owners experience reliable engine operation without frequent knocks when using compatible cars. Fuel access improves in remote areas where earlier variations existed.
Running costs shift slightly due to ethanol’s energy content, yet standardised supply supports steady behaviour in refuelling patterns. Goods transport fleets gain from predictable fuel performance across routes. Infrastructure is gradually aligning as pumps dispense the mandated E20 petrol everywhere.
