BS4 vs. BS6 Bikes Engines What’s the Real Difference

What is BS4?

BS4 stands for Bharat Stage 4 norms, a set of instructions and restrictions for bike manufacturers to limit pollutant emissions. BS4 engine norms were introduced in the year 2010, and became applicable in the year 2017. But after 1 April 2020, the government put restrictions on the buying and selling of such engines because of some of its limitations which we will discuss further in this blog.

What is BS6?

Bharat Stage 6 is introduced in the year 2020 to restrict more harmful emissions. It has restricted the emission of nitrogen oxide by 25% in petrol vehicles and 75% in diesel vehicles including bikes. Technologies like RDE (Real Driving Emission) and SCR (Selective Catalytic Reduction) are also introduced with this norm to enhance the efficiency and performance of the engines.

The need for BS6 arises even if we had BS4 due to the following reasons which include:

• Technological requirement: Updated features like RDE and SCR have been introduced in BS6 that enhance the performance of engines. RDE monitors the performance of the engine in a real-situation setup. SCR evaluates the level of nitrogen emission in the vehicle.
• Lesser harmful emissions: The main feature of BS6 is its environmentally friendly nature. It includes lesser emission of harmful pollutants including sulfur, nitrogen oxide, and particulate matter.
• International commitments: The World is becoming conscious of pollution and framing multiple norms for the same. Hence, it became important for India to comply with them.
• Better performance: Less carbon emission and other toxic substances are the results of installed gasoline injection and fuel-efficient engines. They lead to an overall improvement in the performance of the bike.

Difference between BS4 and BS6

We understand that the BS6 engine is an improved version of the BS4 engine, not its substitute. Thus, the government of India has restricted the manufacturing of BS4 engine bikes after 2020 to work on emissions. Some of the major differences between the engines are as follows:

Bikes having BS6

For readers who are looking for a list of bikes having BS6 engines to choose from their valuable purchase. Here is a list for you to go through.

Conclusion

Lastly, it is quite easier to state that BS6 engines are more updated, futuristic, and emit fewer pollutants. It not only reduces emissions but also gives updated inspection and testing measures to deal with pollution issues. Advancement of this engine is making the riding experience more convenient, and much more benefits in the longer term.