Quote:
Originally Posted by Phase
How bad would these low profile rain guards affect mpg? They barely add any frontal area but obviously aren’t smooth and flush. I’ve thought about getting them to keep myself from getting rained on when ordering at drive thrus and obviously you can crack the windows in warmer weather to let in fresh air versus turning on the ac. Plus biggest selling for me would be being able to crack the windows an inch or two when parked in the sun on hot summer days so the cabin doesn’t heat up as much
But I’ve been worried about the mpg hit. Would it even be noticeable or just a decimal point?
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To my knowledge, they've never been measured for drag alteration.
The development of flush automotive glass would provide insight into an association with drag degradation.