Is E20 Petrol Damaging Your Car Engine? Why Automakers Raised the Alarm and Then Suddenly Backtracked!

If your car or bike has been giving you sudden breakdown trouble lately, you might not be alone. The Society of Indian Automobile Manufacturers (SIAM), which represents India's top carmakers, recently wrote a shocking letter to the Petroleum Ministry complaining about a massive rise in engine part failures. Automakers reported that critical components like fuel injectors, fuel pumps, and exhaust systems were getting badly damaged due to E20 (20% ethanol-blended) petrol. Testing on fuel samples from petrol pumps and customer tanks revealed unusually high levels of chloride-a chemical that causes severe metal corrosion and rust. To make matters worse, excessive moisture in the fuel was causing the ethanol to separate from petrol right inside fuel tanks, causing vehicles to stall suddenly.

However, in a move that has left car owners confused and angry, SIAM executed a complete U-turn just hours after its letter became public. The industry body abruptly withdrew its report, claiming the data needed further authentication and reassuring the public that there was no cause for concern. This sudden backtrack drew sharp criticism from political activists and consumer groups, who accused the automakers' body of tying itself in knots and bowing to administrative pressure rather than standing up for car owners facing heavy mechanic bills.

Defending the national ethanol policy, the Petroleum Ministry stated that petrol quality across the country is strictly monitored, with daily checks for water at fuel outlets. The ministry revealed that out of over 2,000 samples tested nationwide, only two pumps failed standards and were immediately shut down. Despite these government assurances, the sudden U-turn by carmakers has left ordinary drivers questioning whether mandatory E20 fuel is truly safe for their vehicles.