Just took my car to the dealership for some schedule maintenance. They told me that KNN air filter would allow too much dirts to go to the engine and it MIGHT void the warranty ... i am a noob to this car, but is it really the case ??? thanks

 

K&N specifically states that it won't void your warranty

 

Depends.

if oiled *properly* , K&N filter should be about the same as paper filter, and after a while of use, K&N filter will actually be able to filter *better* than paper filter.

But doesnt matter, your dealership is shitting you. You can tell them to *proof it to me*, that will shut them up.

 

K&N air filters allowing dirt through the engine...where do they come up with this stuff?

 

There are studies out there that use some I think lead powder to test the flow and dirt filtering power.

paper filter is probably the best, but it also has the highest airflow restriction.

K&N more of less the same as the others, but it has the best airflow.

Still, calling K&N allows dirt into the engine is just stupid. stock paper filter allows it too, so whats their point ?

There are cars out there with K&N made 1 Million miles. Cant say the same for paper filters.

 

I just hate how K&N's will gum up the MAF sensor.


edit - I have a stock paper filter on my 8.
The Toyota had a K&N, till I looked at what it was doing to the intake tubing.

 

Are you talking just the drop in filter, or the entire K&N intake?

 

I thought we were just talking about the drop in.... D:

 

Motor oil will hold dirt/debris in suspension. Drain your oil at proper intervals & you're fine. Especially the small amounts that get through an air filter.

It's all about oil in moderation with K&N filters. A little oil goes a long way.

If your MAF goes bad and it's covered in intake oil, then the dealer my not want to cover the MAF. That's worst case scenario with a K&N. Oil lightly and use MAF cleaner when you can.

 

That's what I assume, but you know what they say happens when you assume.


Plus I just wanted to ask the obvious question.

 

You put too much oil in your K&N filter ..

I use it for over 6 years in other cars never had any problem with that ...

 

^^^^^^
It wasn't me. I bought it used.
I think they soaked it in oil, cuz the whole intake box and tubing were oily. After a good cleaning of the whole system, including the MAF, the car ran MUCH better.


I am kinda wierd when it comes to air filters. . . . I like the ones the factory uses.

 

thats probably why when I buy these K&N filters. I ALWAYS clean it out right away and oil it on my own. Cuz you were right, at factory they DID SOAKED IT IN OIL, if they oil it by hand ........ it probably take 5 months to buy a filter.

 

That when I assume, I'm always right? lol.

 

probably not the filter - more likely the crankcase vent allowing oil into the intake - you need a catch can ....

 

Come on a k & N drop in filter comes oiled just right & it last a long time. If you buy it used that's a different story. It should be safe if bought brand new.

When re-oling it's when people get out of hand and put to much...

 

Like other's said: not if oiled properly.

 

thats not true the dealer is stupid

 

The dealership is stupid.

Tell them to proof it, in scientific way, in writing. see what they gonna say.

 

On K&N's website they also say they will cover the cost of your repair if the dealer denies warranty service based on one of their filters (last time I checked, anyway). They will pay for your repair and fight with the dealer/manufacturer to get reimbursed. You just have to be willing to help them with whatever info they need, which shouldn't be a big deal.

 

Yea, K&N specifically has on that sticker it will not void the warranty. So if the dealer honestly did void your warranty then you could go after K&N. That would be retarded. Either way theyre in the wrong and youre in the right so dont even sweat it.