What is the significance of bs 3 or 4 engines?



What is the significance of bs 3 or 4 engines?..

Answer / Swati Saxena

BS3 and BS4 engines signify different stages of emission norms. BS3 engines are less stringent than BS4, with BS4 engines having stricter regulations for exhaust emissions, which results in cleaner fuel combustion and reduced pollution.

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