What is difference between BS (3) and BS (4) engines

Hello friends, welcome to my blog channel. In this article we tell you about the difference between the BS (3) & BS (4) engines. Why government banned the production and selling of BS (3) engines in India. 

Introduction:

The full form of BS is Bharat Stage. It is basically the emissions standards given by the government of India to regulate the air pollutants coming out of the automobiles engines. It is applicable to all the vehicle that are running in the country.

BS (3) vs BS (4):

·       POLLUTION: The most basic and important difference between these two engines is that BS (4) emit less pollutant than BS (3).

·       SAFETY: AHO (AUTO HEADLAMP ON) has been found beneficial in reducing crashes involving two wheelers.

·       FUEL INJECTION:  EFI (ELECTRONIC FUEL INJECTION) system is a computer controlled fuel delivery system. With the help of some software, it controls the amount of fuel supply to the engine.

·       TECHNICAL DETAIL:

In BS (3) Vehicles emission of

Carbon Monoxide: 2.30 g/km

Hydro-Carbon: 0.20 g/kg

Nitrogen oxide: 0.15g/kg

 

In BS (4) Vehicles emission of

Carbon Monoxide: 1.00 g/km

Hydro-Carbon:0.10 g/kg

Nitrogen oxide: 0.08 g/kg

Here you can see the emissions of gases in different engines. BS (4) engines emit just half of the gases compared to BS (3) Engines.

 

BS (4) FUEL:

·       It was launched on 1^st April 2017 in major cities and is now available over India.

·       The Sulphur content in it has been brought down as below (Sox emissions are pretty harmful)

Petrol: 150 mg/kg to 50 mg/kg

Diesel: 350 mg/kg to 50 mg/kg

 

NEWS:

·       On 1^st April 2017 Government of India finally ban on sale of Bharat Stage (3) or BS (3) vehicle. The same day our government formally launched BS (4) standard of fuel engines in all over India.

·       The next step is to permanently add BS (4) fuel by 1^st April 2020, nationwide “oil minister said”. Though india is not a major polluting country.

·       BS (4) fuel is now available across India with a target of enforcing BS (6) emissions norms by 2020.