Trevor replied:

We have a K&N filter fitted to a 3.2 Petrol Jackaroo which also has a safari snorkle fitted.
It cost about $120 including cleaning kit from Morpower at Modbury in Adelaide about 3 years ago.
It is far easier to clean than the oil drenched foam filters you can buy.
No bulldust, water or oil has ever passed through it, so the electronics are safe.

Trev

D-Jack replied:

My mechanic told me to stay right away from oil filters or anything modified because they have caused problems before in his experience with high tec turbo diesels with air flow sensors.
Me, I'm, staying with originals.

3.0turbob replied:

Daryl,
Agree with D-Jack, these new hi-tech diesels don't take too kindly to oil soaked air filters as it is known to cause havoc with air flow sensors as in the 3 ltr patrols.
Also was an artilcle in a 4wd magazine about paper filter being better than most oil soaked filters ( don't know about K & N filters though). I will only use the genuine Nissan air filter in my patrol.

Regards
Rob

Member - Banjo (SA) replied:

Do a search - there's a lot of info buried in there from we Jack owners - I use the oily type.

Craigjackaroo replied:

I use a Finer filter in my TD Jack.
Used it for about 20,000 k's
No problems yet but have seen the posts by others describing thier problems with the throttle position sensor.
Don't think the jack uses air flow sensing on the diesel but Manifold Absolute Pressure sensing. I have been told this is a better sensing system for forced induction motors.
Could not get a K&N in Australia Where are you sourcing yours from?

Regards Craig

Member - Jeff M (WA) replied:

I use a Unifilter on the 3.0TD Surf (which has all the electronically controlled whiz bangery of the TD Jack) and haven't had a problem. I used them for years on my old Mechanical Turbo Diesel and never had a drama, always held off on the Surf because of the same storeys. I bit the bullet a couple of months ago and ordered one, havn't looked back. I love them , reckon they are so much better in so many ways to the paper filters. Personally I think that there may be some truth to the storeys however I belive it would be due to people over oiling their filters to such a degree that it does clog sensors and such up. Personally I find if you follow the instructions with the amount of oil, even though it looks like it's not enough you'll find that once you've done a couple of dusty trips you'll see that it's perfect.