I'm using the AIRAID dry synthamax air filter on my 2009 F350 V10. I got it from 5Star tuning. I would steer clear of oiled filters as well, they can gum up sensors. I use to run aFe's SIS intake on my Tacoma that needed to be oiled, but I used that truck for desert prerunning and chaseing, so I wanted the most filtering I could get, but upkeep and maintenance was a bit of a chore. The synthamax only needs to be cleaned and dried to be re-installed. I also like the fact that I did not have to change out the factory intake tube, it's pretty much a straight shot into the throttle, so no need to change. I noticed no notable sound from this open style intake, wich was a nice perk. My Tacoma used to howl and scream under a load, wich I admit was cool, but got old everytime I laid into the throttle.