Rules update: 26 October 2026
The Ministry of Road Transport and Highways has amended the Central Motor Vehicles Rules to include E100 in emission certification requirements for flex-fuel vehicles. The change applies to vehicles specially designed and certified for the relevant high-ethanol blends.
Regular E10 or E20 vehicles should not be assumed compatible with E85 or E100. The government release also says existing owners are not required to retrofit or switch fuels. Check the vehicle manufacturer’s manual and certification before using a different fuel blend.
Official source: MoRTH rules update via PIB.
Always verify important information, dates, eligibility, documents, fees and application instructions from the relevant official notification or official government website.
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