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Why Car Speedometers Read 10%–20% Higher Than Actual Speed

View original Chinese title

汽车仪表盘误差，必须上浮 10%-20% 才是真实速度，这样的隐性知识是怎么流传出来的？

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Ranking history & source details

First recorded Aug 28, 2026, 12:08 AM CST · latest Aug 28, 2026, 9:34 AM CST. Ranks reflect attention on each platform.

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DayPlatformBest rankLast rank
2026-08-28Zhihu Hot List#27#27
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