Full overview of BS6 Engine

Full overview of BS6 Engine - automania

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index 

1] What is BS6? [Bharat stage 6]

2] what is BS6 Technology?

3] What is BS6 Engine?

4] What are the challenges with  BS6?

5] What is the difference between BS4 diesel and BS6  diesel?

6] What is the difference between BS4 cars and BS6 cars in terms of performance?

7] What is the difference between BS4 cars and BS6 cars in terms of fuel economy?
8] What worse air pollution can do to the environment?
9] pollution emission norms BS4 VS BS6
10] Should i buy a new car now or Wait for BS6?
11] What will be the impact of BS6 on CNG cars?

Maruti Suzuki ignis BS6 petrol engine 

1] What is BS6 (Bharat Stage 6)?

The Bharat Stage 6 (BSVI) norm is the sixth mandate for vehicular emissions and a much welcome change amidst the rampant air pollution in India. 

The BS (Bharat Stage) norms are based on EURO (European) emissions standards. The “India 2000” was rolled out in the year 2000, followed by BS2 and BS3 in 2001 and 2005 respectively. 

It wasn’t until BS4 (4th stage) (BSIV), that more stringent emissions mandates were enforced. In 2016, the government of India decided to skip BS5 altogether and implement Bharat Stage 6 (BS6) by the year 2020.

BS6 is a stricter, more restrictive norm that will give a jump start to India’s long battle with air pollution. With the roll-out of the BS6 norms, India will come at par with the US and European equivalent emissions norms.

2] What is BS6 technology?

The BS6 emission standard is the sixth iteration of the emission norm and comparatively, it's a substantial leap in terms of reducing pollution compared to the outgoing BS4. This is also because the BS5 (BSV) has been skipped in an effort to move to better emission norms.

3] What is BS6 Engine?

BS6 fuel has lower sulphur content than BS4 fuel. The sulphur content in BS6 fuel is five times lower (10ppm) as compared to sulphur content in BS4 fuel (50ppm). And, the nitrogen oxide level for the BS6 diesel engine and petrol engine will be brought down by 70% and 25%

Maruti Suzuki Ertiga BS6 Engine 

4] What Are The Challenges with BS6 :-

While it all sounds good to the consumers, it isn’t all hunky-dory with car manufacturers. With the eventual phase-out of BS4 and introduction of BS6, automakers are pressing round-the-clock to develop BS6 compliant vehicles. In fact, due to non-compliancy, the Diesel engine has taken a massive hit with sales dropping to an all-time low.

5] What is the difference between BS4 diesel and BS6 diesel?

Unlike, BS6 petrol, BS6 diesel is very different when compared to its BS4 predecessor. The major difference being Sulfur content. BS6 diesel contains upto 5 times fewer sulfur content than BS4 diesel. In fact, BS6 diesel is limited to just 10 mg/kg of sulfur, compared to the 50 mg/kg content in BS4 diesel. 

This is so to cut down on N20 (Nitrous Oxide) emissions by more than 70%. Using BS4 diesel in a BS6 car can cause serious damage to the fuel delivery system. The increased amount of sulfur will choke the fuel and catalytic converter. And using BS6 diesel in a BS4 car will result in friction issues due to low sulfur content.

6] What is the difference between BS4 cars and BS6 cars in terms of performance?

Lowering environmental emissions can really take a hit on a car’s performance. A cleaner engine carries a generally slower combustion process. Adding to this, are major exhaust modifications which further bottlenecks the overall performance of the cars. Therefore, BS6 compliant cars will be down on performance.

However, Indigenous car manufacturers like Tata and Mahindra are pumping investment into their engine and powertrain research and developer to offer a balanced performance proposition for their forthcoming BS6 cars.

7] What is the difference between BS4 cars and BS6 cars in terms of fuel economy?

The recently launched Bharat Stage 6 equipped petrol Maruti Suzuki Dzire returns a mileage of 21.21 km/l (ARAI Certified) whereas, the outgoing BS4 Maruti Suzuki Dzire returns a mileage of 22 km/l which 0.79 more than the newer “cleaner” BS6 Dzire. As of now, BS6 cars are less fuel-efficient than BS4 cars.

8] WHAT WORSE AIR POLLUTION CAN DO TO THE ENVIRONMENT? 

• Deterioration of the environment: The increase of air pollution severely affects the environment and leads to degradation. The raised amount of pollution encourages the level of CO2 in the atmosphere which can restrict sunlight to reach the earth which is essential for living creatures on earth. The combination of gases such as sulphur dioxide and nitrogen oxide can cause disturbance to the various species on earth.

• Affects human health: Humans need oxygen to live, but if it gets contaminate how will they survive? The deterioration level of air leads to various respiratory diseases in humans such as asthma, bronchitis, lung cancer, throat inflammation, cardiovascular issues, skin irritation and uncountable health issues.

• Global warming: This word ‘Global warming’ has become familiar to everyone these days because it’s another threat of earth due to increased pollution especially CO2. Every new vehicle comes on the road lead to pollution in the environment. Global warming is responsible for polar ice melting gradually that increases the sea level and cause danger to the people living near coastal areas.

• Harm to agriculture: The increasing level of pollution due to harmful gas discharge can lead to infertile land that can hit farmers hard work very badly. The effort farmers put in cultivation will all go in vain. You eat well because they produce good, keep this in mind.

Now, you can imagine how vigorously emission of smoke from your vehicle engine can damage the livelihood of people residing on every corner of the globe. So, start a bit from your side and contribute to the eradication of pollution dissolving in the air.

9] POLLUTION EMISSION NORMS BS4 VS BS6:-

• BS6 emission standard is the sixth emission norm in the sequence in terms of reducing pollution as compared to retiring the BS4 emission standard. BS4 and BS6 are the assigned emission norms that set the maximum allowable levels of pollutant releases from a motor vehicle engine exhaust.

• The BS6 norms vehicles required to emit nearly 60mg/km of NOx (nitrogen oxides) emission, not more than that. Whereas, it was 80mg/km in the case of BS4 norms. Though, the particular matter (PM) limit has also been capped at 4.5mg/km in petrol engines.

• In the case of diesel cars emission norms, it’s way strict. NOx emissions should go down from 250mg/km to 80mg/km, HC+NOx emission must go down from 300mg/km to 170mg/km, PM emissions from 25mg/km to 4.5mg/km.

• The level of sulphur and nitrogen oxide content in fuel plays a significant role. BS6 fuel has lower sulphur content than BS4 fuel. The sulphur content in BS6 fuel is five times lower (10ppm) as compared to sulphur content in BS4 fuel (50ppm). And, the nitrogen oxide level for the BS6 diesel engine and petrol engine will be brought down by 70% and 25%.

• After BS6 norms come in effect from 1st April 2020, BS6 fuel will start dispensing across all petrol pumps in the country. You can even use BS6 fuel in BS4 or older cars without any trouble.

• Sulphur in fuel helps in proper lubrication inside the engine and burn more efficiently. BS6 contain lower sulphur than BS4 fuel with additives that imitate the lubricating properties of Sulphur.

• Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) came up with a role in BS6 norm, whereas, it wasn’t available with BS4.

• With the introduction of BS6 emission norms, Real Driving Emission (RDE) will also be implemented to measure a vehicle’s pollutant emission in real-time conditions. It was not paired with BS4 emission norms.

• Onboard Diagnostic (OD) feature is another change that came up with BS6. It wasn’t introduced with BS4.

• A vehicle that has BS6 compliant engine require to fill with BS6 fuel. It won’t adhere to BS6 norms if someone with a BS6 engine uses BS4 engine fuel. Whereas, the emissions will be increased if a vehicle with BS4 fuel engine uses BS6 engine fuel.

10] Should I buy a new car now or wait for BS6?

With the recent slump in new car sales, the apprehension to buy a new car is comprehensible. Part of the reason is the Bharat Stage 6 emission norm which is deterring potential buyers from buying a car. Most buyers are simply holding on till April 2020 when BS-6 rolls out. Adding to this, the diminishing future of diesel cars in India. Major carmakers like Maruti Suzuki, VW and Tata are phasing out their diesel inventory.

So, should you buy a car now, or wait for the arrival of BS6? If you are planning to buy a petrol car, you can go ahead with the purchase, as the difference between BS4 petrol and BS6 petrol is insignificant.

But, all is not the same with diesel. With the forthcoming BS-6 upgrade, you can expect a price jump of around a ₹1,00,000 more for a BS6 diesel car. For comparison, a BS6 petrol car will only cost you ₹40,000 to ₹50,000 dearer. You can also bid goodbye to compact diesel engines, as the huge price difference will void any saving you are going to make.

Finally, the question remains, should you buy a diesel car now? We say, YES. Consider buying a small capacity diesel though, as it is the best option for frugality and mile-munching. And if you are planning on keeping a diesel car for more than 5 years, the difference is hardly distinguishable.

11] What will be the impact of BS6 on CNG cars?

Carmakers will have to make some minor tweaks with their diesel or petrol engines for using CNG with a BS6 vehicle. CNG cars are already fuel-efficient and way cleaner than petrol or diesel. This does not mean that in the future CNG will not see changes. Once the 2020 BS6 norm in finally implemented, it is only a matter of time that the government will push for even more cleaner CNG.

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