Quote:
Originally Posted by some_other_dave
Keep in mind that many automotive temperature gauges are absurdly non-linear. Some of them read in the middle of the range from something like 100F to 230F. Others are linear and sensible.
... Hmmm, come to think of it, that is based on older cars. It is possible that things are better on more recent cars, especially since modern EFI uses coolant temp as a fairly important input to the engine management. Hmm....
-soD
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My work van's gauge moves to the middle within around 30 seconds of startup, when turning on the heater still blows ice cold air. It's definitely a dummy gauge.
I've programmed my Insight gauge to move from "cold" 2 bars to 4 bars at ~150F, next increment at ~180F, then another at 220F.