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On a cold start it takes some time before the thermostat valve to the radiator opens, but the engine does start to heat up right from the start.
The grill block causes less air to flow though the radiator. Therefore the intake takes in air that is heated by the engine, especially when in town.
I see this happen when I take my kids to school (I have a LGB but no UGB): Engine heats up, the air under the hood gets slightly warm.
Drop off the kids, get back into the car, intake air is 10 C above ambient initially.
Stays up at +5C while escaping from suburbcatraz.
Once out of town the intake temp drops to ambient as more air flows through the (stiill cold) rad.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
Last edited by RedDevil; 02-27-2013 at 11:17 AM..
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