Is bad fuel average in Santro caused by a clogged fuel filter due to poor fuel quality in Pakistan?

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Is bad fuel average in Santro caused by a clogged fuel filter due to poor fuel quality in Pakistan?

My Santro used to give decent mileage, but now the fuel consumption has become very high. Since petrol quality varies a lot across pumps in Pakistan, especially in smaller towns, could a clogged fuel filter be affecting mileage? What symptoms should I check before getting it cleaned o r replaced?

Talha Kyanii asked on 04 Dec 2025 17:13:04 pm

1 Answer

9 views |

Gari Master - on 04 Dec 2025 17:19:06 pm

Yes, poor petrol quality in Pakistan can cause the fuel filter in the Santro to clog faster than usual. A clogged fuel filter will restrict fuel flow and cause the engine to burn more fuel than needed, resulting in bad mileage.

Signs your fuel filter is clogged:

Car hesitates during acceleration

Jerks when driving in 2nd o r 3rd gear

Takes longer to start

Poor fuel average despite light driving

However, Santro fuel average issues can also be caused by:

Dirty injectors very common

Faulty oxygen sensor O2 sensor

Weak ignition coil

Incorrect throttle body calibration

If your fuel filter hasn’t been changed in over a year o r 15,000–20,000 km, cleaning o r replacing it is recommended.