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Originally Posted by CJ_Boxster
Well the K&N will block the dirt, If you ever look at the K&N, it is still a hardy airfilter, it isnt just a fish net stocking LOL. Well i always plan on changing my oils every 10k miles rather than the 15k the dealer recommends.....FYI, air from the intake doesnt go into the crankcase with the engine oil. Ill probably have 1-3% more dust particules that will settle on the cyclindar walls when the engine stops but once the engine is running and igniting that feul, the dust will run its course through the head, then the cyclindar, then back out the head, then out the exhaust....remember, we are talking particules, not rocks.
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Hi,
Your information is uninformed and anecdotal. The K&N Filter will not filter anything smaller than 30 microns with no Oil as opposed to 5 microns for a paper filter. Also, most of the dust you refer to is composed of Silicates which are harder than the Alloy used in the engine and will cause premature wear.
You are also wrong about the dust not getting into the Oil, this WILL occur and will then circulate through the Oil Galleries and Bearing shells (which are again softer than the engine alloys). Using the K&N will be comparable to living in a High Dust environment and Oil s/b changed at 7500 mi. or less. This has been repeatedly shown in ISO 5011 Testing.
Also, the K&N will clog in 1/3 the time of a standard filter totally negating any supposed gains. The Filter has bigger holes in it, and so it admits more dirt/dust into the engine
and the Oil - where do you think the dirt in your Oil comes from? Some are combustion by-products, but you'll find substantial silicate content which isn't such a byproduct.
You can do as you wish, but I hate to see anyone deliberately abusing fine machinery, especially due to ignorance and passing this misinformation on to others. Any way you look at it, it's a bad move...
Happy Motoring!... Jim'99