I changed the air filter when I bought my truck, that was 20,000 miles ago. How often do you guys change yours? <br> ???

Do you have a filter minder...I just watch that when it starts gettin high its time to clean the filter or replace it...so far Iam 2 years on my K&amp;N

Before I switched to K&amp;N, I used to change with every oil change. This of course is overkill. But, air filters are real cheap so I always figured why not. I switched to a K&amp;N and hope to just be able to cleaan it and re-oil per the directions. :)<br><br>Gary

The drum filters in our 1st gens aren't that cheap.. <br> I use K&amp;N and do mostly highway driving so I service it every Summer. I did the same with my paper filter when I had em, every year which was about 40,000 KM (25,000 mi)<br><br><br>J-eh

I've got two K&amp;Ns and switch them out at everyother oil change - about every 12,000 miles. I went that route when I cleaned mine the first time. I used the paper filter so that the K&amp;N could dry properly. When I drove my truck I could feel the difference so I bought another K&amp;N. ;D<br>Bob :)