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Are Pakistani fuel quality standards contributing to increased emissions problems in Changan Karvaan, especially in urban areas?

Are Pakistani fuel quality standards contributing to increased emissions problems in Changan Karvaan, especially in urban areas?

Low-octane o r adulterated fuel can lead to incomplete combustion. Is the van’s engine tuned for cleaner fuel than what is available locally?
Sandeep asked on 26 Jun 2025 15:56:29 pm
2 Answers
11 views |
Car Mechanic Expert - on 26 Jun 2025 16:06:40 pm
Yes, significantly:

Many fuel stations sell low-octane, adulterated, o r unfiltered petrol, especially outside major cities.

Changan Karvaans 1.0L engine with Euro-4 spec may be designed for cleaner fuels than whats widely available.

This mismatch leads to incomplete combustion, carbon buildup, and higher emissions.

⛔ Conclusion: Pakistans fuel quality directly impacts combustion efficiency, especially in vehicles like Karvaan that are not retuned for local fuel standards.
Car Mechanic Expert - on 26 Jun 2025 16:06:41 pm
Yes, significantly:

Many fuel stations sell low-octane, adulterated, o r unfiltered petrol, especially outside major cities.

Changan Karvaans 1.0L engine with Euro-4 spec may be designed for cleaner fuels than whats widely available.

This mismatch leads to incomplete combustion, carbon buildup, and higher emissions.

⛔ Conclusion: Pakistans fuel quality directly impacts combustion efficiency, especially in vehicles like Karvaan that are not retuned for local fuel standards.
 

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