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Why Are Car Thermometers So Inaccurate?

http://www.roadandtrack.com/new- ... ermometers-are-bad/

The temperature on my 97 Camry was accurate, same as the weather report, but the one on Mazda 6 was 4C higher, the dealer could not fix it. The one in F30 is so close to weather report too.

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They should use GPS signal to decide the ambient temperature
每次換車都多三十匹馬力

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http://www.roadandtrack.com/new- ... ermometers-are-bad/
Unfortunately, your car's thermistor is also not very helpful in the winter. Because it isn't accurate to always distinguish between above and below freezing, it can't help you figure out if the road may be coated with black ice. With all these limitations, car thermometers are a fun toy, but not very useful if you actually are looking to find out the temperature. You're better off checking the weather on your phone. As long as you're not currently driving, anyway.

但汽車內置溫度計,正正就係用來當氣溫去到可出現 black ice 時,發出警告。

2016年的霸王級寒流襲港、大帽山結冰一役,香港班 Volvo 佬就好多都報稱標版出現罕見、不明警告,翻查資料才知係警告 black ice。佢哋溫度範圍係點我唔知,但我自己車主手冊就話係要 -2 °C至2°C 才發出 black ice 警告。

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但汽車內置溫度計,正正就係用來當氣溫去到可出現 black ice 時,發出警告。

2016年的霸王級寒流襲港、大 ...
ngu 發表於 2017-6-20 13:31
我記得VAG同BMW係 +4C 或以下已經出雪花logo

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