Thread: Which Air Cleaner for a 2.25 petrol

The K&N filters don't filter. Probably acceptable if you live in a wet climate and never go into the arid parts of Australia, but there has been a lot of discussion on these in this forum, and the consensus is that they are useless. The area you live in has spells when it will be too dusty for one of them, unless you stick strictly to bitumen, and even then a bit doubtful.

I would tend to use the original oil bath - must be a lot of these lying round unused. A proper paper filter could be adapted and fitted, but would be a lot more work.

John

Thanks John I'll have a look at the older threads as well but really appreciate the advice on the k&n, we're new to this

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Ho-hars (on this forum, near Logan) are close to you and are certain to have a good choice of these.

John

Originally Posted by Lockmaker

Thanks John I'll have a look at the older threads as well but really appreciate the advice on the k&n, we're new to this

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john have them here atagood price jim destocking all s2 and 3 body parts engines steering boxs gear boxs and chassi parts

Apart from what's better and what's worse ,I like the look of the old oil bath job. Nothing looks worse to me than when you open up a bonnet and don't see one.
cheers,
D

In terms of what is the best filter, the order of preference should be:

1. Modern off-highway filter assembly (dual stage filter with cyclone).
2. Modern barrel filter assembly with integral cyclone - e.g. 200tdi and 300Tdi defender
3. Modern flat panel filter e.g. Disco 300Tdi
4. Original Oil bath
...
5. A vacuum cleaner bag
6. A stocking
7. A pink batt
8. A chunk of foam mattress
9. Anything that remotely resembles a filter
...
10. K&N

Originally Posted by isuzurover

In terms of what is the best filter, the order of preference should be:

1. Modern off-highway filter assembly (dual stage filter with cyclone).
2. Modern barrel filter assembly with integral cyclone - e.g. 200tdi and 300Tdi defender
3. Modern flat panel filter e.g. Disco 300Tdi
4. Original Oil bath
...
5. A vacuum cleaner bag
6. A stocking
7. A pink batt
8. A chunk of foam mattress
9. Anything that remotely resembles a filter
...
10. K&N

Is this your personal choice, if not whose is it?
.W.

Originally Posted by B.S.F.

Is this your personal choice, if not whose is it?
.W.

Not only his choice but he has done the science behind it, and is without doubt one of the most experienced people around in this field. I'd take his word as gospel personally but it's your choice at the end of the day.

If you do a bit of searching you'll find some threads on this and I think there are some results showing what size particulates get through and what sort of intake restriction they have - I'm about to go camping for the weekend otherwise I'd dig them up for you