Government May Delay E25 Petrol Rollout: India’s ambitious ethanol blending programme might be sliding into a more cautious phase. The Central government is reportedly looking at postponing the countrywide shift to E25 petrol, after a few growing worries around fuel efficiency, vehicle compatibility and consumer complaints connected with the recently rolled out E20 fuel.
This development shows up only a few months after India finished the nationwide move to E20 petrol. It has 20% ethanol and 80% petrol and did it ahead of the original timeline. While the whole plan has been described as a big step toward trimming crude oil imports and lowering carbon emissions more public pushback has now nudged policymakers to rethink how fast the next stage should happen.
Government May Delay E25 Petrol Rollout
According to reports, senior government officials recently reviewed the proposed transition to E25 petrol and favoured a phased and calibrated approach rather than an immediate rollout. “There is a view (within the government) that the transition beyond E20 will need to be spaced out. That is the sense we have got from vehicle manufacturers too. The idea is to go to E25 in a calibrated, graded manner for existing vehicles,” a senior government official told The Indian Express.
Officials are said to believe that automobile manufacturers need additional time to develop and certify vehicles capable of safely handling higher ethanol blends. At the same time, authorities are examining complaints from motorists regarding mileage reduction and vehicle performance after the E20 rollout.
The government has not officially announced a new timeline for E25.
What Are Consumers Complaining About?
Vehicle owners across the country have raised several concerns after the shift to E20 fuel, including:
- Reduced fuel efficiency compared to conventional petrol
- Worries about long-term engine durability
- Possible wear of rubber fuel-system components in older vehicles
- Higher maintenance costs for vehicles not originally designed for E20
“Earlier, there were no complaints. Now that the E-20 has been introduced, we have problems… A car’s carburettor gets jammed. There are many problems. They come and make a mess in the petrol pump. The owner of the petrol pump has nothing to do with it. The government has introduced it. It has sent us. We have sold it,” Association President Sasanka Sekhar Sahu told ANI.
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What Does the ARAI Study Say?
An unpublished study by the Automotive Research Association of India (ARAI) has added fresh attention to the debate.
According to reports citing the study, older E10-compatible vehicles may experience deterioration of rubber components such as hoses, seals and gaskets when regularly using E20 fuel. The report also highlighted the need for component upgrades in certain older vehicles, although it found no major issues in two-wheelers during testing.
Companies including Maruti Suzuki, Hero MotoCorp and Toyota Kirloskar Motor say extensive testing and millions of service records have not revealed ethanol-related engine failures. However, they acknowledge that drivers may notice a 3–3.5% reduction in mileage, largely because ethanol contains less energy than petrol.
According to official government data, the programme has saved significant foreign exchange by reducing crude oil imports while supporting domestic agriculture. Authorities also maintain that E20 underwent extensive testing before being introduced nationwide.
What Happens Next?
While the government remains committed to increasing ethanol blending, the transition beyond E20 is now expected to be more gradual.
“We did not invent the concept of ethanol usage; work on this has been going on for a century… India, the Congress government was the first to formulate a plan for this in India… They use it in racing cars also, the acceleration increases. Mileage, yes, it may drop a little,” Union Petroleum Minister Hardeep Singh Puri said during remarks made last week.
Officials are reportedly considering further scientific evaluation, stakeholder consultations and additional testing before introducing E25 fuel across the country. Automakers are also expected to continue developing engines and fuel systems specifically designed for higher ethanol blends.
