[Maroon 5.0 LX]

In MY experience, the drop-in filter did nothing for me except lighten my wallet by $42. NO increase in performance or gas milage whatsoever.

By the time you buy the filter, the cleaning and reoiling goop, the time it takes to clean and oil, I can't see where you're ahead. If you put too much oil in it, it can screw up the sensors, thus more expense.

When mine gets dirty, it goes in the trash, and a stock Motorcraft filter goes back in.