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Difference between BSIV & BSVI Engine: BS4, BS6 Performance

  • Author :
  • TATA AIG Team
  • Published on :
  • 31/05/2022

Living with unprecedented amounts of pollution is our reality today. But, that is not to say that we should be complacent and not do anything about it. There are a lot of activities being carried out all over our world to curb pollution and leave a viable world for our future generations. If we do not take stringent action against the rising levels of pollution and change our way of life, we could stand to lose the planet we call home. We could be the ones who bring about the end of life as we know it. Thus, governments worldwide are joining hands to develop and adopt measures that will help curb pollution levels in their country.

One of the leading causes of pollution in any country is the use of automobiles. The more populated a country is, the more cars it has. Thus, it is no surprise that India contributes to pollution via automobiles. Therefore, the Central Pollution Control Board (CPCB) developed Bharat Stage Emission Standards laws to minimise pollution released by automobiles.

The Indian government has made these emission limits mandatory to reduce harmful emissions released by automobiles using internal combustion engines. BSES standards were first adopted in 2000 as part of the 'India 2000' initiative. Then, in 2005 and 2010, correspondingly, BS2 and BS3 were released.

With the implementation of Bharat Stage IV, emission standards got much stricter (BS4). Following that, the Indian government decided to stop implementing BS5 in 2016 but instead proposed Bharat Stage VI (BS6) in 2020. For the sake of our article, we will be looking into what is a BS6 engine, the BS6 full form, BS6 norms and so on. We need to understand the BS6 meaning and BS6 norms to comply with the motor laws of our country.

But just knowing what is a BS6 engine and having one is not enough in the eyes of the law. If we want to drive our two-wheeler on the road, there is more that we need to do. Among those is the rule that we must have an insurance policy for bikes. We can face severe trouble if we are caught driving our two-wheeler without a valid insurance policy for bikes. We must have at least a third party bike insurance, though a comprehensive one is always preferable.

Tata AIG’s two-wheeler insurance policy is a good fit for you if you are looking for 2 wheeler insurance online. We provide you with a step by step guide on how you can complete the process and require minimal documentation to enable getting your 2 wheeler insurance online easily. With Tata AIG’s insurance for bikes, you can buy, renew, and file a claim online with ease.

Now, let us jump into understanding what the BS6 meaning is, BS6 full form and BS4 vs BS6.

What is a BS6 Engine and the BS4 Engine?

The Central Pollution Control Board, which is part of the Ministry of Environment, Forestry, and Climate Change, sets pollution emission standards and timelines for implementation and regulation of the air pollutants coming out from internal combustion motors and spark-ignition motors in vehicles.

Before diving into the engine design and pollutant emission in the bs4 and bs6, you should know what they are. The initial emission, dubbed 'India 2000,' was released in 2000. After that, BS2 and BS3 were put into effect in 2005 and 2010. Then, in 2017, the BS4 emissions standard was introduced. If a vehicle is produced after introducing emission standards, it must comply with the regulations.

The Indian government indicated in 2016 that it would abandon BS5 standards in favour of BS6 standards by 2020. The full form of BS6 is Bharat Stage Emission Standards 6. As per a Supreme Court ruling, the marketing and registering of motor vehicles that meet the standard emission 4 would be prohibited beginning April 1, 2020. This important measure was implemented to reduce the excessive pollution emissions that people were experiencing as the year progressed. The BS6 standard was implemented to reduce pollution levels.

Now that you know what is a BS6 engine, BS6 meaning, and BS6 full form, lets go ahead.

BS4 vs BS6

The BS6 norms are quite different from those of the BS4. When contrasted to BS4, the BS6 emissions criteria are substantially harsher. Vehicle makers, particularly two-wheeler makers, must implement these modifications by revising vehicle models.

  • BS6 fuels are substantially cleaner than BS4 fuels because they contain less sulphur, which results in decreased emissions and pollutants.
  • NOx emissions of (no more than) 60 mg/km are required under BS6 standards (nitrogen oxides). In the context of BS4 standards, this was 80mg/km.
  • The sulphur concentration of BS6 fuel is fivefold reduced (10ppm) than that of BS4 fuel (50ppm).
  • BS6 contains compounds that mimic sulphur's lubricating characteristics, whereas BS4 uses real sulphur.
  • The Real Driving Emission standard will correspondingly be enforced in BS6 to estimate an automobile’s pollutant emissions in real-time situations. This was not the case with the BS4.
  • The Onboard Diagnostic (OD) facility is present in BS6 but not in BS4.
  • Another notable difference between BS4 vs BS6 is that BS6 compliant engines must utilise BS6 fuel, and when a BS6 motor utilises BS4 motor fuel, the BS6 norms will be considered broken.

How Does a BS6 Engine Work?

With the assistance of a converter, the Selective Catalytic Reduction (SCR) mechanism transforms nitrogen oxide (NOx) into diatomic nitrogen or water. The SCR system utilises AdBlue or diesel fumes fluid to minimise NOx levels. When exhaust fumes contact AdBlue liquid, urea is transformed to ammonia or carbon dioxide, transforming NOx into water vapour and nitrogen, reducing pollution.

Conclusion

With the rising levels of pollution in India, this move by the government is a welcome one. Now, it is our turn to be responsible citizens and use vehicles that comply with the BS6 standards and ensure that the pollution emissions by our vehicles are as minimal as possible. We should also ensure we are not taking the cheaper way out by substituting BS6 standards with its predecessors.

We need to remember that this planet is our home and its well-being and safekeeping are our responsibility. When abiding by motor traffic rules, we should also remember that having an insurance policy for bikes is mandatory. If you still do not have your insurance in place, get your 2 wheeler insurance online from Tata AIG today!

Disclaimer / TnC

Your policy is subjected to terms and conditions & inclusions and exclusions mentioned in your policy wording. Please go through the documents carefully.

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