cleaning air filter

mcmxi

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***Current*** M6060HDC, MX6000HSTC & GL7000 ***Sold*** MX6000HST & BX25DLB
Feb 9, 2021
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NW Montana
K&N "filters" are absolute junk, they have no place on any engine, especially a tractor.

View attachment 94549
Nice looking chart ... the colors at least. I only run Kubota parts on my three Kubota products so I'm not suggesting anyone do anything. I've already mentioned that I blow out the outer air filter regularly in the summer months when I'm working in dusty conditions but everyone if free to do as they wish.

So back to that chart. I'm not familiar with ISO 5011, I don't know anything about who did the testing, how many filters were tested, if the filters were new or used when tested (see @The Evil Twin comment above), or any other variable to confirm the validity of the testing. The other obvious thing is that the difference between best and worst is 3.13% which looks impressive on the chart, but there are other properties of an air filter other than efficiency. Regardless, I don't have any agenda when it comes to K&N, and like I said, maybe running one isn't the best thing.
 
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