Quote:
Originally Posted by Banzai
Let me rephrase - So there's some kind of backwards suction that pulls the exhaust in thru the rear window.... even when the front windows and/or moonroof are open too?
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depending on where you live, drive with the windows down enough and it'll get dirty over time. heck even windows up will do it on old cars, no cabin filter in my 3rd gen for instance.
my dad commutes 60 mi one way through downtown Los Angeles and one year my buddy and i detailed his little beater Toyota pickup he had driven since new. it was disgusting how dirty the headliner was, and only really evident once you started cleaning just how dirty.