Aerodynamics of Toyota offered Spoilers

[Kaotic Lazagna]

Originally Posted by fnkngrv

I can tell you that it makes a difference not having it on for sure after this weekend's event. I am gonna leave it off for a couple tanks of gas as well to see if it impacts my mpg +/-. I would think at this point that it would give me better with out it. I would also be curious of the addition of a spoiler like what is on Jason's truck would improve mph because of the increased aerodynamics especially since you can adjust it with the dampeners.

Don't forget, my car came without a spoiler. I saw no mpg difference after I added my Thai spoiler. I saw a very minute difference in mpg, like .0x mpg difference when I had my Vortex Generators on and saw the difference in how moisture on my window disappeared with and without it. If you can add those on, I suggest playing around with them (angle and placement wise) using short strings taped at various places and driving down the freeway to get the airflow as stable as possible. I guess try to get the strings all "flowing" down towards the trunk instead of flowing erratically.

[ljming99]

What about underpanels? Im pretty sure that would make some difference