Gas stations smell.
California has a few stations that, when you get in your car, you have that after-taste in your mouth still. It's in the air.
Maybe it's the heat or the humidity. I can't think of a station in Mississippi that does not have that taste. I know that some people don't mind the smell, though it bothers me.
I'm thinking that California has so many laws and additives that the smell is less prevalent. I'm not sure. But this culture shock is not a pleasant one for me.