Quote Originally Posted by OTEP View Post
A/C engineers have taken that into account (smoking) but it is not a recommended practice. Nicotine can also stain the ceiling and upholstery in the long term.
Now your talking hehehe. I am a chain smoker and that explains why I have these brown stains on the ceiling of my old Toyota. Been figuring for a long time how come I have those on the ceiling and yep, on some parts of the seat cover too. Now I dont smoke inside the car na. Wife's gonna kill me.

Thanks for the info.