Quote:
Originally Posted by Frank Lee
Breathe enough exhaust through that window and all you'll be able to do is make a mute point.
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Ahh good point. Spending x amount of money on some plexi glass doesnt seem too worth it either.
We always drive with the windows down as well, so I wouldn't be too worried about carbon monoxide.
Regardless of, it's not a risk I'd like to take.
So then theoretically speaking; would propping the rear hatch open work for mpg gains on the highway or would the potential vacuum deem the idea detrimental to mpg?