Quote:
Originally Posted by Ryland
I thought that semi's still used oil bath filters, as they can hold pounds of dirt in a few cups of oil, and just need the oil changed, from what I have read about them they sounded like the best air filter you could get, other then people don't understand how to maintain them.
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Oil bath filters are used on much older semi's, and the truckers are the ones that changed over to HUGE air filters. They were sick of wiping out all the nasty oil (especially when there are dead critters in it). So they went to filters that are upwards of 2 feet tall and a foot plus diameter.