Air deflectors-good or bad for FE?

  #1  
Old 01-07-2008, 07:20 AM
nicst47's Avatar
Pretty Darn Active Enthusiast
Thread Starter
Join Date: Nov 2007
Location: Rhode Island
Posts: 322
Default Air deflectors-good or bad for FE?

Are the window air deflectors considered goo or bad for FE?
 
  #2  
Old 01-07-2008, 08:50 AM
gpsman1's Avatar
Hybrid and Ethanol Expert
Join Date: Mar 2005
Location: All over the Central U.S.
Posts: 3,589
Default Re: Air deflectors-good or bad for FE?

Anything that makes your car wider or taller is bad for Fuel Economy.
More so at higher speeds.

If you like them tho... go for it. Your MPG loss will probably be too small to notice, and will proably "cost" you 1 gallon extra per year... or less....
-John
 
  #3  
Old 01-07-2008, 09:38 AM
nicst47's Avatar
Pretty Darn Active Enthusiast
Thread Starter
Join Date: Nov 2007
Location: Rhode Island
Posts: 322
Default Re: Air deflectors-good or bad for FE?

Originally Posted by gpsman1 View Post
Anything that makes your car wider or taller is bad for Fuel Economy.
More so at higher speeds.

If you like them tho... go for it. Your MPG loss will probably be too small to notice, and will proably "cost" you 1 gallon extra per year... or less....
-John
For some strange reason, I thought they might actually help FE by blocking wind flow when the window is opened.
 
  #4  
Old 01-07-2008, 11:08 AM
Ridiculously Active Enthusiast
Join Date: Mar 2006
Location: Ventura, CA
Posts: 887
Default Re: Air deflectors-good or bad for FE?

Originally Posted by nicst47 View Post
Are the window air deflectors considered goo or bad for FE?
I have them on my FEH, with no observable change in FE. I also removed the roof rack and installed the factory tracks, again no observable change to FE. Probably same with mudflaps, all these things do affect FE but not enough to be noticeable in normal street driving. However tire pressure does make a measurable change in FE.
 
  #5  
Old 01-07-2008, 11:18 AM
nicst47's Avatar
Pretty Darn Active Enthusiast
Thread Starter
Join Date: Nov 2007
Location: Rhode Island
Posts: 322
Default Re: Air deflectors-good or bad for FE?

Originally Posted by econoline View Post
I have them on my FEH, with no observable change in FE. I also removed the roof rack and installed the factory tracks, again no observable change to FE. Probably same with mudflaps, all these things do affect FE but not enough to be noticeable in normal street driving. However tire pressure does make a measurable change in FE.
Thanks Don.
 
Related Topics
Thread
Topic Starter
Forum
Replies
Last Post
chimemaker1
Toyota Prius
5
01-25-2008 07:48 AM
DBS
Toyota Camry Hybrid
3
06-20-2007 04:22 AM
leepark
Toyota Camry Hybrid
10
11-08-2006 09:50 AM
dbennettya
Ford Escape Hybrid
3
04-14-2006 12:26 PM


Thread Tools
Search this Thread
Quick Reply: Air deflectors-good or bad for FE?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.