Amid the public backlash over E20 fuel — 80 parts petrol and 20 parts ethanol — the ministry also rejected claims that automakers have privately indicated that E20 is not desirable. India achieved 20% ethanol blending in petrol last year and E20 is the standard petrol variant available across the country. The government has also consistently rejected claims that E20 fuel could damage engine components, saying that the extensive testing and field validation was done before E20 petrol was rolled out. According to the government, vehicle manufacturers wouldn’t have honoured vehicle warranties after E20 rollout had they believed that the fuel was fading systemic engine damage. India achieved 20% ethanol blending in petrol five years ahead of schedule.