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the claim
Idling a car engine wastes fuel and pollutes.
the verdict
INSUFFICIENT LEANING
Recorded sources
4 sources for · 0 against
Is it true that Idling a car engine wastes fuel and pollutes?
Unclear. Several sources state that letting an engine idle wastes fuel, and one study notes idling stop systems improve fuel consumption. None of the placed items addresses the pollution half of the claim.
Verdict: PARTIAL LEAN · 4 sources for, 0 against · Last checked
Evidence for · 4
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Wen-Kung, T. & Tsung-Jen, M. (2025). The Study of Fuel Consumption for Idling Stop Systems in Different Traffic Conditions. zenodo.org. https://doi.org/10.59324/ejaset.2025.3(2).13
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More for · 3
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Khatri, D. S., Ramesh, A., & Babu, M. K. G. (1997). Comparative Studies on the Idling Performance of a Three Cylinder Passenger Car Engine Fitted with a Carburettor and a Single Point Electronic Gasoline Fuel Injection System. doi.org. https://doi.org/10.4271/971615
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IDLING SPEED (NZ Truth, 20 October 1927). (1927). paperspast.natlib.govt.nz. https://paperspast.natlib.govt.nz/newspapers/NZTR19271020.2.57.6
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WHEN CAR IS STANDING. (Ellesmere Guardian, 16 June 1936). (1936). paperspast.natlib.govt.nz. https://paperspast.natlib.govt.nz/newspapers/EG19360616.2.4.4
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held for human review17 Oct 2026
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