YouTuber Sourav Joshi claimed that mileage of his Mercedes fell from 17 km/l to 5 km/l due to ethanol-blended petrol. "These days I’m actually scared...while filling petrol," he added. The government has acknowledged that E20 petrol can reduce fuel economy by 3-5%. However, it said that the benefits, such as better pickup and lower carbon emissions, outweigh the mileage loss.