I have a couple questions for you guys but first my comments
![Big Grin](https://www.fuelly.com/forums/images/smilies/biggrin.gif)
...some of you guys are doing some CRAZY things for fuel mileage
![EEK!](https://www.fuelly.com/forums/images/smilies/eek.gif)
...now I'm just trying to figure out how far I'm going to go..
1) I have the factory "wing" on my Civic (pic below). I'm sort of indifferent about it but I'm for leaving it on because of the 5 holes that would be left in the trunk lid. In your opinions, would I see a considerable mileage increase from removing it? What about the side window vent visors (sunroof visor has been removed).
2) I have two sets of wheels. The winter set consisting of the stock 15" alloys with 195/60's (IIRC). Two have snow tires and two have all-season tires. My summer tires on HEAVY (relative to the 15's) 17's with 215/45's. Some of you are going to want to punch me in the face when you hear this but I'm losing anywhere from 15-25% fuel mileage with them...and that's relative to my winter fuel mileage...so, I'm considering running the "winter set."...would I be ignorant in running the snow tires but keeping them in the rear? Or will they be too soft? (I'm assuming so
![Frown](https://www.fuelly.com/forums/images/smilies/frown.gif)
)
Anyway, any advice would be appreciated. My other FE mods are being dropped about 1.6" (very surprised at how much that is helping), running 35% or darker on ALL windows (obviously, less A/C demand), and am working on an exhaust (not sure if it's going to help but figured I'd give it a try).
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