How do fuel inefficiency and engine smoke issues manifest in Kia Sorento models in Pakistan, and what solutions have owners found effective?

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How do fuel inefficiency and engine smoke issues manifest in Kia Sorento models in Pakistan, and what solutions have owners found effective?

Gas penetration and smoke during cold starts o r extended idling are concerns for some Kia Sorento owners. If youve experienced excessive fuel consumption o r visible engine smoke—whether from turbocharger glitches, piston ring wear, injector fouling, o r other causes—please share your observations. Additionally, what repairs, maintenance practices, o r driving habits have you found effective in reducing these issues?

Talha Kyanii asked on 10 Sep 2025 12:34:16 pm

1 Answer

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Gari Master - on 10 Sep 2025 12:35:17 pm

Engine Smoke & Idle Behavior

Smoke during prolonged idling
A Pakistani owner of the 2022 Sorento 3.5‑FWD reported the vehicle emitted extraordinary amounts of smoke after being static for a few hours, although this disappeared after driving 8–10 km. The issue was dismissed by the dealership, despite the owner capturing video evidence
Pakwheels
+1
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Fuel Inefficiency

High fuel consumption with V6 engine
Owners note that the 3.5 L V6 variants are especially gas‑guzzlers, resulting in poor fuel economy and heavier taxation under Pakistan’s token system:

“Unfortunately the 3.5 L will lead to bad fuel average and high registration/annual token taxes.”
Pakwheels

Potential Solutions

Oil catch can for carbon buildup
Some owners have tried installing an oil catch can between the PCV and intake manifold to reduce carbon deposits:

“I installed a catch can… hopefully it will keep most of it from going back into the engine and contributing to carbon buildup.”
Reddit

Use cleaner, higher‑octane fuel
Though specific to the Sportage, Pakistani drivers report better engine performance and less knocking when using high‑octane fuel o r fuel system cleaners—advice that could extend to Sorento users facing inconsistent local fuel quality:

“Using high‑octane fuel occasionally o r adding fuel system cleaners helps maintain combustion efficiency.”
Gari.PK