Changed out my Fram CA11480 and replaced with another. My Fusion had about 16k on the filter. A little dirty but not bad. It had been a year since I last changed it.
Originally Posted by ARCOgraphite
... Dirtier it is, the better fuel mileage you will get. ...
Not really.
Up to a point, the dirtier it is, the less wear you will get.
Also fuel mileage if you have wideband lambda. It simply throttles the engine at high rpm, WOT.
Me. I dont like the power loss with a clogged filter.. I actual put a LOW efficiency cheap STP in the Rogue to get more WOT zing entering the expressway. A Nice filter I bough previously seemed to choke the thing up.