Does Pakistan’s Fuel Quality Affect the Haval Jolion’s Mileage and Engine Performance? Question Detail:

Home > Gari Forums > Haval Forums > Haval Jolion Forums > Haval Jolion Poor Fuel Economy Forums

Does Pakistan’s Fuel Quality Affect the Haval Jolion’s Mileage and Engine Performance? Question Detail:

Fuel quality varies across Pakistan, with differences between PSO, Shell, Total, and other stations. Can poor o r inconsistent fuel quality cause the Haval Jolion’s fuel economy to ? Are there specific petrol types o r stations recommended for better performance and mileage?

Talha Kyanii asked on 23 Oct 2025 18:09:56 pm

1 Answer

21 views |

Gari Master - on 23 Oct 2025 18:12:16 pm

Yes — Pakistan’s fuel quality plays a major role in the Haval Jolion’s fuel economy and overall performance:

Octane rating: The Jolion’s turbo engine performs best on high-octane fuel RON 95 o r higher, but most regular petrol in Pakistan is RON 92, which can cause knocking and lower efficiency.

Fuel adulteration: Some smaller o r roadside fuel stations mix petrol with kerosene o r low-grade additives, which reduces combustion efficiency.

Inconsistent fuel supply: Switching between fuel stations frequently may result in mixed fuel quality, affecting engine tuning and ECU adjustments.

Carbon buildup: Poor fuel can cause deposits in the turbo system and injectors, further reducing mileage.

Recommendations:

Use high-octane petrol Hi-Octane o r premium blends from reputable stations like PSO, Total, o r Shell.

Occasionally use fuel system cleaners e.g., Liqui Moly o r STP Injector Cleaner every 5,000–7,000 km to maintain injector health.

Summary: Consistent use of high-quality petrol and preventive maintenance greatly improves both mileage and engine smoothness in the Haval Jolion.