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NeilBlanchard · 03-19-2009, 06:50 AM

Hi Bruce,

I think that the location of the opening greatly affects the effectiveness. You should be fine with the whole upper grill blocked (and with the edge of the hood sealed). I think leaving the center of the lower grill open will be the most effective with the smallest opening; or at least that is how it works on my xA:

03-19-2009, 06:50 AM	#16 (permalink)
NeilBlanchard Master EcoModder Join Date: May 2008 Location: Maynard, MA Eaarth Posts: 7,907 Mica Blue - '05 Scion xA RS 2.0 Team Toyota 90 day: 42.48 mpg (US) Forest - '15 Nissan Leaf S Team Nissan 90 day: 156.46 mpg (US) Number 7 - '15 VW e-Golf SEL TEAM VW AUDI Group 90 day: 155.81 mpg (US) Thanks: 3,475 Thanked 2,950 Times in 1,844 Posts	Hi Bruce, I think that the location of the opening greatly affects the effectiveness. You should be fine with the whole upper grill blocked (and with the edge of the hood sealed). I think leaving the center of the lower grill open will be the most effective with the smallest opening; or at least that is how it works on my xA: __________________ Sincerely, Neil http://neilblanchard.blogspot.com/ Last edited by NeilBlanchard; 03-19-2009 at 06:57 AM..