Out of curiosity - Why do you recommend not using a K and N air filter? I am not a big "gear head engine guy" so I am very much a novice on a lot of that stuff, however I ran a K and N on my 96 Tacoma in highschool and college and never had any issues in the 90k miles I put on it during that time.
The only thing I have every heard was if you over oil them, it can set off your mass air flow sensor?
We are running an AFE dry filter on my wives 4runner.
Exactly oiling the filter can be an issue if it is over oiled . I used them in an Avalon and Camry at roughly the same time. I saw no difference in gas mileage or performance, I did notice that the engine was louder when accelerating with the K&N in the Avalon.
