Is poor fuel quality in some regions of Pakistan a major cause of low mileage in Changan Kalam?

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Is poor fuel quality in some regions of Pakistan a major cause of low mileage in Changan Kalam?

Drivers in rural areas say bad petrol o r diesel affects combustion. Could dirty fuel injectors o r clogged filters also be contributing?

Lubaba asked on 18 Jun 2025 16:37:42 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 16:41:43 pm

Yes, particularly in rural and interior areas.
Many areas e.g., rural Sindh, southern Punjab suffer from:

Low RON petrol

Contaminated o r diluted fuel

Unfiltered fuel from roadside pumps

This leads to:

Clogged fuel injectors

Misfires

Poor combustion, all reducing fuel efficiency

In such cases, even engine cleaning and filter replacement can temporarily improve mileage.