Hmmm, the filters come ready to install ... you should detect a pinkish colour in the filter element and that's the oil. The grease is there of course to seal the filter where it slides into the airbox.

Now if you really have smeared the grease over the filter element that's going to stop the filter doing it's intended job. If it was me I would want to clean it before fitting for use. Personally I only use the DNA service kit but I do know people use the K&N equivalent ... I normally service the filter myself and tell the local shop not to touch it during regular service intervals ... sometime ago they forgot and I'm not sure what brand they used to oil the filter element but it took forever to clean the black sticky crap out of the filter.

I have plenty of DNA Filter Oil available if you can get it clean (using say K&N Power Kleen) ... unfortunately I'm out of DNA Cleaner ...

Hope this helps ...

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Regards
Pete

expat Kiwi - now living in Melbourne - now riding a XT660R and a XT1200Z