So I sort of fail to see that it is such a benefit with the hose from the oil filler cap to the air cleaner. I mean, it will not help when the engine is running since it is suction there anyway, and it will not help when the engine is stopped either, because then the engine does not pull anything in, neither from the oil filler cap nor the PCV valve. I have the feeling it is most for looks. :)
Bill
