With E20 petrol, the regular fuel in India now has an octane rating that can approach or exceed 98 RON. Tap to know what that ...

Autocar India’s lab tests confirm that 100-octane petrol contains no ethanol, while all other fuels have 20 percent. Tap to ...

Your car's computer detects wrong octane fuel and automatically adjusts to prevent engine damage, though performance drops until you refuel correctly.