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Posted by Desoto61 [66.75.37.197] on Thursday, February 04, 2010 at 20:24:31 :
In Reply to: Do you know why? posted by Jbizal [70.98.222.73] on Thursday, February 04, 2010 at 19:11:11 :
With the advent of emission controls, burning oil in the engine can hurt the O2 sensor. It can also affect the mass air flow sensors used on some types of vehicles.
I would think there's also a lot more design and packaging flexibility with the paper filters. Size, shape, location, orientation can all be modified more easily than with an oil bath style.