BS 3 vs BS 4 This video tells you about the actual differences which many people don't know. This video include brief content of following topics: 1. Introduction to BS. 2. BS 3 vs BS 4 3. BS 4 fuel 4. BS 4 news

1. MGPO
BS(III) v/s BS(IV)

2. OBJECTIVE
• Introduction to BS.
• BS(III) v/s BS(IV).
• BS(IV) ___ .[Many people don’t know]
• BS(IV) news.

3. BHARAT STAGE(BS)
• BS is basically the emission standards given by
Government of India to regulate the air
pollutants from automobile engines. BS
stands for Bharat Stage. BS standard is
applicable to all the vehicles that are running
in the country.
• You may have heard of other similar standards
like Euro 1, Euro 2, in Europe and Tier 1, Tier
2, used in USA.

5. BS(III) v/s BS(IV)
• POLLUTION:
The most basic and important difference is BS(IV) emit
less pollutants from the exhaust than BS(III).
• 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 help of some
software, it control the amount of fuel that should be
supplied to the engine.

6. TECHNICAL DETAILS
• In BS(III) vehicles :
Carbon Monoxide - 2.30 g/km
Hydro Carbon - 0.20 g/km
Nitrogen Oxide - 0.15 g/km
• In BS(IV) vehicles :
Carbon Monoxide - 1.00 g/km
Hydro Carbon - 0.10 g/km
Nitrogen Oxide - 0.08 g/km

7. 0
0.5
1
1.5
2
2.5
Carbon Monoxide (g/km)
BS(III)
BS(IV)

8. 0
0.05
0.1
0.15
0.2
0.25
HC (g/km) NOX (g/km)
BS(III)
BS(IV)

9. 0
100000
200000
300000
400000
500000
600000
2016 Target after BS(IV)
Number of Accidents
Number of Accidents

10. BS(IV) FUEL
• BS(IV) fuel was launched on 1 April’17 in
major cities and is now available all 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

11. BS(IV) NEWS
• On 1st April ’17 Government of India finally put a ban
on sale of Bharat Stage III (BS III) vehicles. The same
day also saw a formal launch of the Bharat Stage IV (BS
IV) standard fuel across the country.
• The next step is to permanently add BS(VI) fuel by 1st
April 2020, nation wide,” the oil minister said. Though
India is not a major polluting country.
• BS4 fuel is now available across India, with a target of
enforcing BS(VI) emission norms by 2020.

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