Personally, I use the stock Factory Ford Racing air filter. I just don't really like the oiled filter because if used improperly, it can cause damage. I have yet to see any reason to go with the K&N.
I do use a K&N on my Ranger. Only because that was on the truck when I purchased it. I do clean and oil that filter regularly. This truck is driven a lot (well over 300,000 miles) so K&N may be worthwhile in this case but I would, most likely, not purchased one if it was not on it when I bought the truck.
As far a Green Filter. I have considered that several times but mostly for the color (green) to go with my Green Bullitt. I do not think it has any performance advantage over the Ford Racing filter so it would just be for looks. But, since I have several stock Ford Racing filters in my garage, I will just "play it safe" and stay with what I have.
I do use a K&N on my Ranger. Only because that was on the truck when I purchased it. I do clean and oil that filter regularly. This truck is driven a lot (well over 300,000 miles) so K&N may be worthwhile in this case but I would, most likely, not purchased one if it was not on it when I bought the truck.
As far a Green Filter. I have considered that several times but mostly for the color (green) to go with my Green Bullitt. I do not think it has any performance advantage over the Ford Racing filter so it would just be for looks. But, since I have several stock Ford Racing filters in my garage, I will just "play it safe" and stay with what I have.
