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Originally Posted by Xan Why are you changing? UPS screwed up my oil filter order which I placed two months ago. Then, K&N sent me two filters. I plan on
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UPS screwed up my oil filter order which I placed two months ago. Then, K&N sent me two filters. I plan on using them and then switch to purolator puro1 for future. I like the pure1 because it's slightly larger as cliff aka "dad" pointed out.
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From what I understand the Puro has a finer filter but this comes at the expense of flow rate (though still within SEA standards). Now the bypass pressure on the Puro is also somewhat higher then the K&N. So allthough it filters better just from a filter performance point of view and therefore does good in tests, I'm wondering how good it is for our engines, especially when you drive them under high load for a longer time. I wasn't able to find the exact specs for the two different filters and I don't know if this is correct, but this is what I found for similar filters: Purolator PureOne PL34631 * Average largest pore size: 42 µm * Smallest pore size: 10 µm * 30W 70F Oil flow @ 10psi: 5.3 oz per minute K&N 3002 * Average largest pore size: 63 µm * Smallest pore size: 27 µm * 30W 70F Oil flow @ 10psi: 14.7 oz per minute
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