K&N Air Filter in a 3L 05 GUIV (NON CRD)

[scotty83]

Have been given a K&N Air Filter as a present.

To Fit or NOT to Fit is the Question??

Is anyone running one of these?? I have heard that the 3L is particular about its air flow.

[YNOT]

The 3L DI motor is sensitive to airflow but I don't think fitting the new filter will change the airflow enough to cause issues.
You do need to watch how much oil is in the filter, if it has been over oiled the excess oil can contaminate the airflow sensor.

My personal opinion is if I was going to use a K&N or similar filter in a 4WD I would only ever use it for on road use. Off road I would switch back to the standard paper filter. I just don't trust the performance filters for off road use.

Tony

[Bigrig]

I just put one in my TB42e and happy as - that's said, it was sucking in some crap as the old one was a bit Swiss cheese!! LOL. So far, so good ...

[scotty83]

Like the idea of swapping back to the paper filters for offroad use as i had a similar concern. Would still like to hear the opions of others to find a bit of consensus. Thanks for your quick replies.

[Ben-e-boy]

I have a K&N in mine and have done for over a year. and had no problems. and I go offroad. I accually had this discussion at work today. the bloke was saying that his mates used them and the sucked in excess oil through the motor. That is caused by human error. when you oil a K&N you are supposed to leave it out for the oil to penetrate the filter material. the excess will drain off and you remove that with a rag. The biggest drawback with a washable filter is that it is a day job to change, by the time it dries after washing and waiting for oil to penetrate

[Sretch]

Definately stick with the genuine paper filter.

[big_fletch]

I have tried the k&n filters and they don't filter as well as a paper one.. They will let more air though and maybe help a bit with performance, but start driving in dust and I found the air flow sensor and intake pipes to the turbo had dust in them (and that filter was barley 3weeks old)..
On road k&n is good, off road I would use paper filter... Personally I run a genuine Nissan filter all the time and change it every 5000km when the troll gets a service

[scotty83]

Have fitted the K&N but will be swapping it out for serious offroad. Thanks to everyone for their advise. Will try to post back to let everyone know how it goes.

[Oversize]

I just put one in my TB42e and happy as - that's said, it was sucking in some crap as the old one was a bit Swiss cheese!! LOL. So far, so good ...

I just put a K&N in Thelma without reading this thread first. What say you now after six months use???

[happygu]

Just don't over oil it, or you will end up with your MAF sensor coated in oil, and then you run the risk of the sensor giving incorrect readings ....... it could then even help it go Kaboom!!

I won't use one, as it is hard to quantify when it is over or under oiled.