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Old 12-04-2017, 06:39 PM   #1 (permalink)
EcoCivic
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Does running hotter than stock improve MPG?

I know that engines run most efficiently when they are fully warmed up. So my question is can running hotter than stock improve efficiency? I don't think that you would gain much from running hotter, but not sure. So, for example, if the stock coolant temp is 190, would running at 210 improve efficiency? If so, how much? Thanks.

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