Is poor-quality local diesel o r petrol in Pakistan affecting Changan Kalam’s emission levels and damaging emission control components?

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Is poor-quality local diesel o r petrol in Pakistan affecting Changan Kalam’s emission levels and damaging emission control components?

Drivers suggest low-grade fuel causes soot buildup. Does the vehicle require higher quality fuel than what is commonly available?

Lubaba asked on 18 Jun 2025 17:38:08 pm

1 Answer

14 views |

Car Mechanic Expert - on 18 Jun 2025 17:44:51 pm

✅ Yes — local fuel is a major contributor to emission issues.

Most commercial diesel in Pakistan:

Has high sulfur content non-Euro compliant

Causes soot buildup in injectors, EGR, and exhaust

Kalam engines are not designed to tolerate high-sulfur diesel without extra maintenance

🛢️ Solution: Use premium diesel where available, change fuel filters frequently, and clean injectors regularly.