Government Approves E100 Pure Ethanol Fuel, Standard Cars Restricted From Using ItAuto
27 Oct 2026, 12:47 pm (3 hours ago)· 0

Government Approves E100 Pure Ethanol Fuel, Standard Cars Restricted From Using It

The Ministry of Road Transport and Highways has notified amendments to Central Motor Vehicles Rules, paving the way for 100 percent ethanol and E85 flex-fuel vehicles. However, ordinary cars running on standard petrol cannot use these high-blend fuels.

In a significant shift toward alternative energy, the Ministry of Road Transport and Highways has notified amendments to the central motor vehicle rules on Monday, clearing the path for flex-fuel vehicles capable of running on 100 percent ethanol and E100 fuel. Flex-fuel automobiles are engineered to handle high-level ethanol blends including E85, which contains 85 percent ethanol, alongside pure E100 fuel.

Restrictions Apply To Standard Petrol And Conventional Vehicles

A senior ministry official clarified that fuel blends containing more than 20 percent ethanol can only be utilized in vehicles specifically designed and certified to run on high-ethanol concentrations. This means motorists driving ordinary cars powered by standard petrol or E20 fuel, which contains 20 percent ethanol, will not be permitted to fill up with E85 or E100 fuel.

Also read

Weight Limits Revised For Light Petrol And Diesel Vehicles

The revised regulations also introduce adjustments to vehicle classification thresholds, fuel specifications, and technical parameters utilized during emission testing procedures. As a direct result of these modifications, the weight limit for affected light petrol and diesel commercial and passenger vehicles has been raised from 3000 kilograms to 3500 kilograms.

Push For Ethanol Blending Aims To Curtail Crude Oil Imports

The central administration has been actively promoting ethanol blending in standard petrol to steadily diminish the nation's reliance on imported crude oil. The country has already rolled out E20 fuel, consisting of 20 percent ethanol mixed with 80 percent petrol, across various regions. Demonstrating industry adoption, Maruti Suzuki India introduced the country's first flex-fuel passenger car, the WagonR, in June of this year, which can operate seamlessly on fuel ranging from E20 up to E100.

Major Automotive Manufacturers Developing Flex-Fuel Models

Alongside Maruti Suzuki, several other prominent automobile manufacturing firms including Toyota, Tata Motors, and Hyundai are actively developing flex-fuel vehicle options tailored for domestic consumers. Prior to this notification, the ministry had proposed amendments to vehicle emission standards to expand the legal framework governing alternative fuels and higher ethanol blending ratios.

Upcoming Integration Of Biodiesel And Hydrogen CNG Blends

The proposed modifications to the Central Motor Vehicles Rules, 1989, are specifically structured to incorporate regulatory frameworks not only for E85 and E100 but also to facilitate the adoption of B100 biodiesel and hydrogen-CNG blended fuels in the near future.

Questions & Answers

What are E100 and E85 fuels?
E100 is 100 percent pure ethanol fuel, while E85 consists of an 85 percent ethanol blend combined with petrol.
Can standard petrol cars use E100 fuel?
No, standard petrol cars and conventional E20 vehicles are strictly prohibited from using E85 or E100 fuels.
Which vehicles are permitted to run on E100 and E85?
Only flex-fuel vehicles specifically engineered and certified to handle high ethanol concentrations can operate on these fuels.
What major change did the transport ministry announce?
The ministry amended the Central Motor Vehicles Rules to legalise E100 flex-fuel vehicles and increased the weight limit for affected light vehicles from 3000 kg to 3500 kg.
Which company launched India's first flex-fuel passenger car?
Maruti Suzuki India launched the country's first flex-fuel passenger car, the WagonR, in June of this year.
Why is the government promoting ethanol blending?
The government is promoting ethanol blending to steadily decrease the nation's reliance on imported crude oil.
Which other automakers are developing flex-fuel cars?
Alongside Maruti, companies such as Toyota, Tata Motors, and Hyundai are developing flex-fuel vehicles for the Indian market.
What additional fuels are covered under the proposed rule changes?
The proposed amendments also establish provisions for utilizing B100 biodiesel and hydrogen-CNG blended fuels.

Comments 5

Sneha Kulkarni@sneha-kulkarni·36m ago

Reminds me of when Maruti first showcased that flex-fuel WagonR model. People were wondering if regular cars could run on it, but now it is clear that only specially engineered vehicles will handle pure ethanol.

Ravikash Gupta@ravikash·57m ago

Don't even think about putting pure ethanol in a normal car, the engine will seize. This move cuts crude oil import bills, but flex-fuel cars need to be widely available for the common buyer first.

Sophie Laurent@sophie-laurent·57m ago

Ravikash, you are right about the engine damage, but the WagonR is already out in the market since June. Just wait a bit, other cars are coming too.

Rohan Gupta@rohan-gupta·1h ago

When I test drove the new flex-fuel WagonR last month, I knew the government was going to push this hard. Now we will probably need separate lanes at fuel stations.

Michael Anderson@michael-anderson·1h ago

Rohan, the debate over alternative fuels is heating up in the US too, but these shifts really make fuel choices confusing for everyday drivers.

Citizen journalism

Become a TrendKia journalist

Voice of the people

Share news, photos and videos from your area with TrendKia and let your voice reach the nation. Every citizen a journalist.

Join now
CH 01 LIVE
TrendKia TV ON AIR
Chamar no WhatsApp