The Bharat Stage (BS) Emission Standards are regulations designed to control air pollutants released from vehicles. All vehicles sold, registered, and driven in the country must comply with these standards, which were introduced by the Central Pollution Control Board, Government of India.
BSIV and BSVI represent two iterations of these emission norms aimed at pollution control. In addition to adhering to BS norms to limit emission levels, it is also important to invest in good two wheeler insurance for your vehicle and conduct regular pollution checks.
Read on to learn more about the difference between BSIV and BSVI engines.
Difference Between BS4 and BS6 Engine
The replacement of the BSIV with BSVI norms has led to significant changes in the type of engines used in vehicles. The differences are as follows:
Year of Introduction:
The Bharat Stage IV or BS4 norms were introduced in 2017.
The Bharat Stage VI or BS5 norms were introduced in 2020.
Type of Fuel:
BSIV engines run on fuel that has 50 parts per million (ppm) of sulfur, which leads to more pollution. In contrast, BSVI engines use fuel with only 10 ppm of sulfur. This means BSVI fuel has five times less sulfur, making it much less harmful to the environment.
Level of Emissions:
BSIV engines emitted higher levels of toxic pollutants such as NOx, CO, PM, and HC compared to the newer standards. BSVI engines adhere to stricter emission norms. For petrol vehicles, the NOx emissions limit has been reduced from 80 mg/km to 60 mg/km, and for diesel vehicles, it has been reduced from 250 mg/km to 80 mg/km.
Advanced Technologies:
Much like the previous emission standards, BSIV engines do not have any sophisticated features. BSVI engines, however, come equipped with advanced Exhaust Gas After Treatment systems. These systems and filters collect and remove particulate matter from exhaust gases, measure emission levels, and more.
Conclusion
The difference between BSIV and BSVI engines lies in how they function. BSVI standards provide an effective solution for regulating emissions from both two-wheelers and four-wheelers in India.
BSVI norms are an improvement, and thanks to these engines, automobiles are now cleaner and more efficient, contributing to a better environment. While BSVI engines offer many benefits, don't forget to invest in good two wheeler insurance to protect your vehicle while on the road and access financial protection in the event of an accident.
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