Is the conversation around BS4 vs BS6 confusing you about your next car purchase? If yes, then you have come to the right place! Here we answer all your questions surrounding the transition from BS4 to BS6.

While it is not ideal to buy a brand-new car that is not BS6 compliant, it is a good idea to purchase a second-hand vehicle with a BS4 engine. The reason is that the Government has recently announced that all automobile manufacturers can only manufacture Bharat Stage 6 compliant vehicles after April 2020 irrespective of the COVID-19 led lockdown.


What Are Bharat Stage Emission Standards?

Bharat Stage Emission Standards are regulations set by the Central Pollution Control Board of India (CPCB) to control the level of pollutants released into the environment by internal combustion engines, including those of motor vehicles. The BSES standards are based on European regulations and were first introduced back in 2000. They are named as BS3, BS4, BS5, BS6, etc. Each number against the norm represents the rigidity of regulations; the higher the number, the stricter the standards.

Automakers are mandated to manufacture their vehicles as per these emission standards. The Bharat Stage 4 was in use but has now been overtaken by Bharat Stage 6 emission norms, with the Indian Government altogether bypassing the BS5. This is due to the extremely high level of pollution in Indian cities, especially the national capital, Delhi.

Let us understand what the terms BS4 and BS6 mean in detail.

What Is Bharat Stage 4?

Bharat Stage 4 norms were the emission norms mandated on 1st April 2017 for vehicle engines. Compared to previous norms, they led to a reduction in sulphur level emissions by 86%. These norms are set to be replaced by the BS6 norms in April 2020. However, the implementation of BS6 norms on cars will be seen after the end of COVID-19 lockdown.

What Is Bharat Stage 6?

Bharat Stage 6 regulations are the latest emission norms for Indian vehicles. A significant difference between BS4 and BS6 is that BS6 fuel has five times lower sulphur traces. Also, the BS6 engine is expected to reduce NOx (Nitrogen Oxide) by 70% for diesel engines and 25% for petrol engines.

What Do the BS6 Norms Mean for you?

Automakers have started producing vehicles with BS6-compliant engines. This means that the government is stringent on implementing BS6 norms as soon as possible; this also means that BS4 cars will become cheaper than ever. However, there are a few things you need to know about BS4 cars –

  • You can drive a BS4-compatible vehicle without any problem. The BS6 norms are only formulated for new cars and not the existing ones.
  • Using BS6 fuel for a BS4 engine does not affect the car’s mileage, efficiency, and overall performance. This is why you can buy a used car without any worries.
  • Usage of BS4 fuel for a BS6 engine is still a debate. It may or may not affect your new BS6-compatible car’s performance, which is why you should wait before purchasing a new car.

Buying a Used BS4-Compatible Car

Since purchasing a new car does not seem like a good decision, at least before BS6 norms are implemented nationwide, consumers can buy used cars that are BS4 compliant as they will be available at cheaper prices.

If you dream of owning a car without overpaying for it, then this is a great time to own one using apre-owned car loan. Choose a trusted lending institution like Tata Capital. Get a second-hand car loan ranging from Rs. 1 lakh to Rs. 50 lakhs for a tenure of 12 to 60 months with interest rates starting at just 15%. Contact us and wheel in the vehicle of your dreams!

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