Roy,
We are also big into Industrial air a liquid filters , The K&N filter will
flow lot of are with minimal restriction ,so at the drag strip we love
them. However like you found out, the particular matter cannot be stopped
very well with the Viscus Impingment that the oiled cotton tries to do.
That principle of filtration is frowned on by all the diesel manufactures.
The particular matter will wear your engine so that the oil consumption
will increase but you'll like the added economy and power.

On Fri, Nov 17, 2017 at 4:25 PM, roy keen wrote:

> Had a k&n replacement in mine to replace the stock one . I got a report
> back from black stone that suggested my oil sample had dirt in it and I may
> have a problem with my air filter. I then removed it and put in a new
> stock one. The next oil sample didn't have dirt in it. No more k&n for me.
> --
> Roy Keen
> Minden,NV
> 76 X Glenbrook
>
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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