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Old 09-04-2017, 02:58 PM   #7 (permalink)
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Originally Posted by oil pan 4 View Post
Enough to where electric vehicles have closed off grill openings.
If you block off the grill you may have the electric fans kinking on more, eating up some of the savings.
Newer vehicles must have spent time in the wind tunnel working on minimizing the grill opening effects compared to vehicles from years ago. That's the only thing I can think of.
Also, good point about the radiator fan running more. Just curious though- Do you mean that the fan would run more on the highway, or in traffic? On my Civic, the fan doesn't turn on until 207 degrees unless the AC is on, and it only runs at around 185 or so on the highway. So the fan will run longer in traffic from simply blocking off the upper grill? Won't the fan just pull more air in from the lower grill opening?
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