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Old 02-26-2015, 02:26 PM   #2 (permalink)
Daox
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Join Date: Dec 2007
Location: Germantown, WI
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CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

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90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
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I'd advise getting a scangauge, ultragauge, or some other form of OBDII monitoring device. You can watch your coolant temps (and a ton of other things like mpg) and see if its getting too warm and if your radiator fan is running too much.

To answer your other question, blocking a grill from behind is less effective. How much, we can't really say as its application specific.
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