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foam air filter without oil?

455 Views 4 Replies 4 Participants Last post by  carpdad
It's a generator, 5000watt, honda. It's in a small shed and nj suburb, everything is either grass or asphalt. The shed sees little dust, landscaper. Original filter was factory oiled but designated replacement is wrong size. So bought UNI foam filter (green and for fine particles, 5/8" thick and plan to double it) and a can of spray oil made for filters but wondering if oil is a must in this situation?
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If its supposed to be oiled, its going to be rather useless without the oil.

Even with the oil, I wonder. A while back, Project Farm, on YouTube, tested automotive air filters. The K&N (oil covered fabric material) was pretty poor at stopping particulate even with the oil. (But it did flow very well)
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