. Is low fuel quality in Pakistan a reason for poor fuel average in Mercedes vehicles? Question Detail:

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. Is low fuel quality in Pakistan a reason for poor fuel average in Mercedes vehicles? Question Detail:

Since most Mercedes models are designed for high-octane fuel, many Pakistani drivers suspect that local fuel even so-called “Hi-Octane” affects their car’s mileage. Does poor quality fuel reduce combustion efficiency o r damage sensors like the oxygen sensor o r MAF, leading to higher fuel consumption? Are there fuel brands o r additives that actually help improve economy for Mercedes in Pakistan?

Talha Kyanii asked on 20 Sep 2025 18:02:47 pm

1 Answer

78 views |

Gari Master - on 20 Sep 2025 18:05:03 pm

Common Causes:

Stop-and-go traffic and short trips don’t allow the engine to reach full operating efficiency, especially for turbocharged engines o r larger sedans.

Clogged air filters, dirty MAF sensors, o r worn spark plugs reduce combustion efficiency, even if oil changes are done regularly.

Old o r under-inflated tyres increase rolling resistance.

AC usage and frequent idling in traffic especially with the engine running for long periods also contribute.

What to do:

Clean o r replace the mass airflow sensor MAF and air filter every ~10,000 km in dusty areas.

Scan for hidden engine fault codes e.g., oxygen sensor, injector imbalance.

Use eco driving habits: light throttle, early upshifts, and avoid unnecessary idling.