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cfg83 · 01-03-2010, 10:59 PM

dward1 -

What Frank said. You can cover the upper grill and be "aggressive" with the lower grill too. I am thinking that you could probably get away with just the center two slats open for winter :

Try tape at first and monitor coolant temps. If it's too hot, peel off successive layers of (vertically placed) tape, and repeat the test until you reach temps that are comfortable for you.

Does your Sienna have a roof rack? It looks like a stock photo, is why I asked. Would removing that be too much for the parental units?

CarloSW2

01-03-2010, 10:59 PM	#6 (permalink)
cfg83 Pokémoderator Join Date: Dec 2007 Location: Southern California Posts: 5,864 1999 Saturn SW2 - '99 Saturn SW2 Wagon Team Saturn 90 day: 40.49 mpg (US) Thanks: 439 Thanked 530 Times in 356 Posts	dward1 - What Frank said. You can cover the upper grill and be "aggressive" with the lower grill too. I am thinking that you could probably get away with just the center two slats open for winter : Try tape at first and monitor coolant temps. If it's too hot, peel off successive layers of (vertically placed) tape, and repeat the test until you reach temps that are comfortable for you. Does your Sienna have a roof rack? It looks like a stock photo, is why I asked. Would removing that be too much for the parental units? CarloSW2 __________________ *What's your* EPA MPG? Go Here and find out!** American Solar Energy Society Last edited by cfg83; 01-03-2010 at 11:06 PM..