E20 Petrol in India: Compatibility, Mileage Impact and Owner Checks

In this short

• FUEL POLICY Ethanol Blended Petrol: Owner Checks Understand compatibility, mileage math and practical checks for Indian cars and bikes.
• WHAT IT MEANS Ethanol Makes Up The Blend 20% ethanol E20 is petrol blended with 20% ethanol; the engine specification still matters.
• WHO IS AFFECTED Build Date Changes The Check 1 Apr 2023 The government’s parliamentary reply separates broad E10 and E20 material-compatibility groups.
• CAR DATA Tested Cars Saw A Small Shift 2–3% The ARAI project’s reported E20 fuel-economy decrease for tested four-wheelers versus E10.
• BIKE DATA Two-Wheelers Need Their Own Baseline 5–6% The same ARAI project reported a larger range for tested two-wheelers.
• COST MATH Turn Mileage Into Rupees ₹6,808 In the worked Delhi example, this is the baseline cost for 1,000 km at 15 km per litre.
• READ THE FULL GUIDE Get the complete breakdown Numbers, comparisons and what to check next.