Back windshield always has dirt film and thick smudges...
 

why does this happen? its hard to clean too...i usually use a towel with water and clean it but sometimes it still there even after i wiped it 10 thousand times. any tips on cleaning this? its on the inside thats for sure, because when i use my fingers to touch it i can see the film being scratched off but is really really hard to make it look like a clean window. I tried almost everything like newpaper and water, window cleaner, window wipes, still comes back and very hard to clean all the dirt film off. Any help would be appreciated...thanks

do you drive with your windows down a lot? i think that might be the reason. when you drive, the dust/dirt from outside gets stuck onto your rear windshield.

i used to drive with my windows up, and my rear windshield stayed clean, but ever since i started driving with them down. it got dirty

i noticed that too, its a bitch to clean, esp. around the third brake light. but ever since i stop rolling down my windows, it stays clean. happened on my windshield too.

Yep, it happens to my front and rear windsheild all the time as well. Just get some cleaner and clean it every so often...sometimes you just gotta deal with it though. And if u can not stand it that much, just drive with the windows rolled up

yea i do drive with my windows down...almost everyday...hahhaa...

i don't want to use my AC because it waste gas and yea i am poor and want to save as money much as i could...oh well guess i'm gonna have to deal with it or clean it...thanks guys

Hahaha...i feel the same exact way...my windows are always down....unless its raining...screw AC :D