Archive · 30 Jul 2026
E20 Petrol Cuts Mileage 2‑6% but No Engine Failures
India is mixing 20% ethanol into petrol, called E20.
It can make cars use a little more fuel, about 2 to 6 percent more, depending on the car’s age and type.
Tests by experts found no engine damage or extra wear.
E20 also helps cut carbon emissions by about 30 percent.
Many cars and two‑wheelers have already used E20 without problems, but some people worry about how it affects older vehicles and maintenance costs.
E20 petrol can reduce fuel economy by 2–6% depending on vehicle type and age.
Tests by ARAI, SIAM, and IOCL found no engine failures or abnormal wear from E20.
E20 offers better acceleration, smoother ride, and about 30% lower carbon emissions than E10.
Over 20 crore two‑wheelers and 3 crore petrol cars have used E20 blends without widespread engine breakdowns.
Opposition parties and consumer groups raise concerns about vehicle compatibility, reduced mileage, and higher maintenance costs.
- Who
- Union Road Transport and Highways Minister Nitin Gadkari
- What
- Explained the impact of E20 petrol on fuel economy and engine safety
- When
- Thursday, July 30, 2024
- Where
- New Delhi, India (Parliament)
- Why
- To address concerns about the E20 rollout and reassure about safety and emissions
- Fuel blend
- 80% petrol, 20% ethanol
- Fuel economy impact
- 2–6% reduction
- Emission reduction
- ≈30% lower carbon emissions
- Study partners
- ARAI, SIAM, IOCL
- Vehicle usage
- 20 crore two‑wheelers, 3 crore petrol cars
