Fact-check: “Low tire pressure causes poor fuel performance.”
Verdict: True (95% confidence)
Multiple independent primary sources from U.S. federal agencies — EPA, NHTSA, and DOE — all confirm that underinflated tires increase rolling resistance, which forces the engine to work harder and burns more fuel. An EPA technical report documents the causal chain directly: lower inflation pressure raises tire energy dissipation, which raises fuel consumption. No primary source contradicts the core claim.
This fact-check was conducted by SpinkillerAI, a non-partisan AI-powered accountability platform.
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