Government ministries report varying mileage drops for non-E20-compliant vehicles using E20 fuel, with estimates ranging from 2-6% to 3-5%, depending on vehicle type and vintage.
The extent of reduction depends on the vehicle
Jul 31, 2026
12:38 pm
What's the storyRoad Transport and Highways Minister Nitin Gadkari has informed the Parliament that petrol blended with 20% ethanol (E20) can reduce fuel efficiency by 2-6%. The extent of reduction depends on the vehicle category and vintage.
Notably, the petroleum ministry had told the Rajya Sabha on July 20 that "any reduction in fuel economy in certain older E10-designed vehicles is generally limited to about 3-5%."
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