Ethanol Blending in Flex-Fuel Vehicles | Maximum Ethanol Limit Explained |

How much ethanol can flex-fuel vehicles use? What is the difference between E20, E85 and E100?

In this current affairs question, test your knowledge of the government’s latest vehicle rules and the maximum ethanol blend permitted for approved flex-fuel vehicles.

✅ Correct Answer: 100% Ethanol (E100)

📌 Important Facts for Competitive Exams:

Flex-fuel vehicles: Vehicles designed to operate on different proportions of petrol and ethanol.

E20: 20% ethanol and 80% petrol.

E85: 85% ethanol and 15% petrol.

E100: 100% ethanol.

Maximum permitted ethanol blend: Up to 100% (E100) for suitably designed and approved vehicles.

Relevant ministry: Ministry of Road Transport and Highways (MoRTH).

Main objective: Promote alternative fuels, reduce dependence on imported crude oil and support cleaner mobility.

📖 Why Is This Important?

Ethanol blending is an important part of India’s strategy to diversify fuel sources, strengthen energy security and encourage alternative-fuel technologies in the automobile sector.

🎯 Useful for: UPSC, SSC, Banking, Railway, State PCS and other competitive examinations.

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