K&N filters

mike-s wrote:
Air filters should be changed every 10-20K.

My book says 30,000 miles. Got one at 180k and will again at 210k. Not sooner.

For $350, you must be looking at a whole "CAI" setup... That's where you get the nice big chrome tube and a cone shaped K&N filter on the end.. Unless it's in a sealed box not exposed to the engine compartment, it's not really a "Cold Air Intake" setup..

But, if you do a drop in K&N, that's up to you and most only cost around $50 or so..

They have washable 'dry' type filters too and full disclosure, I used to run a drop in K&N filter on my 97 F150 with the 5.4 in it and I never had any of the MAF issues, or dirty oil or whatever all the rest of the interweb quotes are..

Ran that truck to over 255,000 miles too, and it was still running great when I traded it for the 13..

I'm now only running the MC (Motor Craft) air filters in the 13 now.. Just because of the warranty and it's easier to just change the filter every year instead of dealing with the cleaning/oiling of a K&N or even just the cleaning of those so called 'dry' filters...

Anyway, I never really saw any noticable difference running the aftermarket filters... Maybe I'm just older now, which I am, so in the end, do whatever works for you.. :)

Mitch

jfkmk wrote:

mike-s wrote:
Snake oil, and don't perform as well as a standard paper filter. They can be a bit cheaper in the long run, if you don't value your time and want to put lots of work into cleaning and re-oiling them.

I don’t know about cheaper. A motorcraft filter for my f-150 runs about $11. A k&n runs about 5 times that. If I’m lucky, I’d break even over the lifetime of the truck.

If a modern vehicle won't go 200K, you have bigger problems than choosing an air filter. Air filters should be changed every 10-20K. So, break even is a bit over 100K if you stretch out the changes and consider the cost of the filter oil. As I said, it can be cheaper in the long run. Show your math.

mike-s wrote:
Snake oil, and don't perform as well as a standard paper filter. They can be a bit cheaper in the long run, if you don't value your time and want to put lots of work into cleaning and re-oiling them.

I don’t know about cheaper. A motorcraft filter for my f-150 runs about $11. A k&n runs about 5 times that. If I’m lucky, I’d break even over the lifetime of the truck.

If you want to dust your engine, then drink the K&N koolaid.

Snake oil, and don't perform as well as a standard paper filter. They can be a bit cheaper in the long run, if you don't value your time and want to put lots of work into cleaning and re-oiling them.

Your stock filter will out flow the K&N and do a better job as well.

Not a good thing for a diesel. Test show that the stock filter for the duramax is the best one out there. In the test K&N let in far more dirt which will foul the MAF sensor. I had one in my gasser Tundra and saw no real improvement. I went back to the stock filter.

I did it for a 1999 F150 and it had an impact. When I bought a 2003 GMC Duramax, It did nothing. I will not do it again.

Terryallan wrote:
No. Didn't help a thing.

Not sure I want to waste $350. Thanks