K&N air filters YES or NO

What vechile and are you doing it for performance?

 

I've ran a k&n filter in my truck since pretty much new. 2014 with 530k miles on it now. Its nice to be able to clean it easily, and the truck likes it. Cant really measure a fuel savings ot notable power increase, it's just like putting one on any passenger car. Its worth it but not mind blowing by any means.

Unless you're cleaning it more often than every 6 months or so or work in really dusty environments, you wont really be saving much over dropping in paper ones. They dont last forever, I tossed my first one after 4 1/2 years or so.

All oil samples I've done over the life of the truck have been good and have not indicated lousy filtration

 

Have you looked at Fleet Air Filters? They're a lot better than K&N

 

What filters have you used in the past?

And what have you been going with those poor trucks to snot em up maybe?

Filters are nothing special, I replace them in the vehicles a little more often than most people because I know the engine has need of good air, however it can get it. Considering some of the dusty places we go.

 

I use a fleet air filter. Can’t say as I’ve seen any improvement in economy and performance. They are not recommended for really dusty application. And at 300 bucks it’ll take a year and a half before it pays for itself. All in all I can’t say that it’s really worth it.

 

I take you are working in a really dusty environment?

If so an k&n or any oiled air cleaner that claimes a higher air flow will trash your engines very fast. The reason they air labled as higher air flow and claim performance gains is because they do not filter as well.

Also you didn't answer what VEHICLE you are running.

Sounds like you are looking at extending the service interval for your filters so you need to look at a better filtration system with a precleaner not a less restrictive filter.