Diesel Performance Filter

[Greg Roles]

...yep, that'd qualify as "too much".

Having run K&N's in the Golf for a time, and my last three cars, you'd have to seriously over oil it to even get any oil on the inlet side of the filter. I've never seen any sign of even a spec of oil from a K&N.

[Dyldo]

ok, so i have oiled the filter. didn't take photos (sorry) but got a nice light red colour and not much (if any) grey. i was quite sparing with the oil, and probably used 0.5oz according to the bottle.

Is it possible to underoil the filter as well as over-oil it? if so, is it worthwhile pulling the filter off and adding more oil?

[Greg Roles]

I think it's much safer given the potential MAF issues to under oil it a bit, afterall all the oil does is make the fibres more "attractive" to dust. I always just serviced the K&N more often, rather than overoil it, as in my mind once the wet fibres were full, the oil part of the equation ceased being effective. 5k or so I reckon is the go.

[Dyldo]

5k or so I reckon is the go.

wowsers, 5K? the K&N website says 30K to 50K miles, and you'll be doing it ten times in that distance.

I reckon mine went about 35K kms before i serviced it, and thats including the 15/20K the previous owner put on the intake before i bought it. it was pretty jammed with black muck and about 400 bugs. cleans up good though.

i think i was a bit overzealous with the no gaps sealant though for the intake housing, and there's a good chance i won't ever be able to ol it again anyway...