E20 petrol may reduce fuel economy by 3-5% in older vehicles designed for E10, but extensive testing shows no widespread engine damage or breakdown due to ethanol blending.
Extensive testing and real-world use have not shown any major engine damage
Jul 21, 2026
02:32 pm
What's the storyThe Indian government has revealed that the new 20% ethanol-blended petrol (E20) may lead to a slight reduction in fuel efficiency for some older vehicles.
The decrease is estimated to be around 3-5%.
E20 petrol may cause a slight fuel economy reduction in older vehicles. Extensive testing has not found widespread engine damage…
The government acknowledges E20 fuel's minor fuel economy reduction. This impact is outweighed by benefits like better engine…
E20 fuel may reduce mileage by 3-5% but offers cleaner combustion and significant energy security benefits, says Oil Ministry.
E10 vs E20 petrol difference explained: As India embraces E20 petrol, many car owners are apprehensive about the potential impact…
New Delhi, Jul 10 (PTI) Petrol blended with 20 per cent ethanol (E20) can reduce fuel economy by 3-5 per cent in some vehicles,…
The Petroleum Minister acknowledged a minor drop in fuel efficiency with E20 petrol but highlighted improved acceleration and…
E20 may lower mileage by 3-5% in some older vehicles, no widespread engine damage found: Govt
E20 petrol debate: Govt cites data for 23 crore vehicles, says 'no verified evidence' of widespread engine failure
Premium petrol to remain ethanol-free; no plan to increase ethanol blending beyond E20
