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This is a discussion on 2010 Prius Grill Blocking strategy within the Gen III 2010 Prius Accessories and Modifications forums, part of the Gen III (2010+) Toyota Prius Forums category; Are there any New England "grill blockers" out there? I'm wondering if you block just the lower section? I am ...


2010 Prius Grill Blocking strategy

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Old 11-03-2009, 12:39 PM   #51
GreenGuy33
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Default Re: 2010 Prius Grill Blocking strategy

Are there any New England "grill blockers" out there? I'm wondering if you block just the lower section?
I am thinking that when I get my Prius, I invest in a Scanguage.
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Old 11-03-2009, 01:02 PM   #52
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Default Re: 2010 Prius Grill Blocking strategy

with scangauge, u have little to worry about. general rule of thumb, if 45º or cooler, u are ok. i set mine at 60º but do little major freeway travel so i can go a little "hot" without issues. even with temps in 60º have never seen temps over 208º that was with 2006.

on 2010, never above 201º but very little experience on this since blocking has only been on a month. i do 100% bottom, 75% top

**edit** FYI, for driving around town in 2010, speeds 30-40 mph... i think top temp i have seen in past few weeks has been maybe 190 or so.... on work commutes, 7 miles, temp usually only gets to the low 180's sometimes. on colder days, the 170's and that is with the grill blocked. probably would be lower with no blocking
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Old 11-03-2009, 01:06 PM   #53
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Default Re: 2010 Prius Grill Blocking strategy

I just blocked the lower grill. temps vary here now from 30's to 60's. It helps
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Old 11-03-2009, 01:21 PM   #54
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Default Re: 2010 Prius Grill Blocking strategy

Has anyone calculated to fuel economy using the grill blockers? How much better if fuel economy?
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Old 11-03-2009, 03:56 PM   #55
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Default Re: 2010 Prius Grill Blocking strategy

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Originally Posted by GreenGuy33 View Post
Has anyone calculated to fuel economy using the grill blockers? How much better if fuel economy?
no real numbers to post. it all depends. on short trips of say 10 miles or less, 5 mpg or more. reason is, grill blocking greatly affects the warmup time.

if that 10 miles in done during sub freezing weather at 35 mph or less, it could be 10 mpg. if that 10 miles is 2 miles city streets, 8 miles highway, might only be. 3-4 mpg.

same scenario except its 30 miles on the freeway, the difference might only be 1-2 mpg. so it all depends.

when temps hit the teens and 20's, grill blocking may mean the difference between a warm driver or cold hands the entire trip if short enough. in mild weather, like 40's and 50's, its not going to matter as much.

but bear in mind... it does make a difference. the more extreme the weather, the more it matters.

the shorter the trip, the more it matters.
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Old 11-03-2009, 04:47 PM   #56
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Default Re: 2010 Prius Grill Blocking strategy

** Moved to Modifications Forum and made Sticky **

Great topic, but moved to appropriate forum and made sticky (since everyone looks for it).
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