How does the quality of fuel available in Pakistan affect the Mercedes-Benz S-Class’s fuel economy?

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How does the quality of fuel available in Pakistan affect the Mercedes-Benz S-Class’s fuel economy?

Fuel quality varies significantly across Pakistan, with some stations selling adulterated o r low-octane fuel. Using poor-quality fuel can reduce combustion efficiency, cause engine knocking, and increase fuel consumption, negatively impacting the overall fuel economy of the S-Class.

Talha Kyanii asked on 11 Oct 2025 15:46:55 pm

1 Answer

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Gari Master - on 11 Oct 2025 15:48:26 pm

Fuel quality significantly impacts the S-Class’s fuel economy because:

Adulterated Fuel: Some petrol o r diesel sold locally is mixed with lower-grade substances, reducing combustion efficiency and engine performance.

Low Octane Fuel: Using fuel with an octane rating below the manufacturer’s recommendation can cause knocking, forcing the engine management system to reduce timing, which lowers fuel efficiency.

Engine Deposits: Poor fuel quality leads to deposits in fuel injectors and combustion chambers, reducing efficiency.

Increased Wear: Consistently poor fuel can damage engine components, leading to further performance and efficiency losses.

Using high-quality fuel from reputable stations is essential for maintaining the S-Class’s performance and fuel economy.