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Does Shell Gasoline Have the Function of Cleaning Carbon Deposits?

3 Answers
DeTravis
08/26/25 5:36am
Shell gasoline does not have the function of cleaning carbon deposits. High-quality gasoline can only reduce the formation of carbon deposits but cannot remove existing ones. The main components that form carbon deposits are impurities such as wax and gum in gasoline. Therefore, gasoline with higher cleanliness has a weaker tendency to form carbon deposits. Additional information: Carbon deposits include two concepts: Engine carbon deposits: A coking-like substance produced during engine operation due to unsaturated olefins and gum in fuel under high temperatures. Carbon deposits in EDM (Electrical Discharge Machining): Carbon deposits in EDM should be avoided as much as possible, especially in precision mold processing, as they can have a fatal impact.
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StHenry
09/08/25 7:52am
I've been driving a Toyota Corolla and using Shell V-Power gasoline for almost three years now. It does have carbon deposit cleaning capabilities, and I can feel the engine running smoother. Shell claims it contains special additives that dissolve carbon deposits, reducing idle vibration and fuel consumption. However, the effects aren't immediate and depend on the car's age and driving habits. From my experience, driving at high speeds for a while each week helps with cleaning. Carbon deposits are mainly caused by oil residue buildup, and using premium fuel is just supplementary – don't forget regular oil changes. Overall, Shell fuel works well, and my friends who tried it on my recommendation also noticed positive effects, which can help extend engine lifespan.
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GabriellaFitz
10/22/25 8:00am
As a car enthusiast, I often inspect the engine myself. It's true that Shell gasoline cleans carbon deposits, and their additive technology like Pura helps break down oil sludge, preventing blockages. Carbon deposits form due to incomplete fuel combustion or excessive idling, and using Shell oil can gradually clean them. I also use an OBD scanner to monitor data, which shows performance improvements; but don't rely on it alone, as high-speed driving and high RPMs are more thorough in removing carbon deposits. I recommend taking a long-distance drive once a month to assist in more efficient maintenance.
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