Well, I guess I'm with Frank too. In 190k miles I've changed it twice. First time at maybe 30 or 40k. The filter was still so clean that a service guy at my dealer suggested I put it back in! (I didn't.) I ran the second filter to about 180k miles on the car. My gas mileage seems to have dropped a bit over the last year or so. I thought my bad transmission might have been the problem but it wasn't. I changed the filter since it had about 140k miles on it and that didn't seem to make any difference either (didn't really expect tit to). That second filter had some dirt at places (more than the first one) but I wouldn't call it "dirty". I don't plan to ever change it again even if I make it to 300k. I'm not trying to "recommend" anything - just giving my experience.