BS-VI diesel cars could be up to 82% less polluting

The Supreme Court of India has refused to advance the April 1, 2020 deadline for cars to adopt the BS-VI emission norms.

Amicus curiae - Harish Salve, told the Supreme Court that upgrading a diesel car to match the BS-VI emission norms would cost a manufacturer around Rs. 36,000 / per vehicle. Such a vehicle could be up to 82% less polluting. Salve's private study indicates that manufacturers would have to incur a cost of Rs. 15,800 per vehicle to make their vehicles BS-V compliant from BS-IV. However, by spending an additional Rs. 20,280, the diesel cars would be BS-VI compliant. BS-VI cars would have their injection pressure set between 1,800-2,100 bar and the cars would use more efficient diesel particulate filters. On the other hand, it would cost manufacturers merely Rs. 1,200 to conform BS-IV petrol vehicles to the BS-VI norms.

The benefits of switching to BS-VI include a reduction in particulate matter emissions by around 82% and NOx emissions by 68% in diesel cars and 25% reduced NOx from petrol cars.

In addition to car manufacturers, oil companies would have to incur a significant capital investment to ensure the fuel quality is BS-VI compliant.

The Government of India is planning to implement the BS-IV emission norms across India by April 2017. From April 2017, BS-IV norms will be enforced all over the country and only vehicles that comply with them will be allowed to be sold and registered.

Source: ET Auto