martin_wExplorerJun 03, 2013gm 8.1 engineI have 2006 fleetwood flair with 6000 mi need to add oil about every 900mi . I see no leak on the ground or gray or black smoke. Wayne
MountainAir05Explorer IIJun 04, 2013It is just a orifice that meters flow, does the same thing, with a different name. I made the same error calling it a pvc valve.
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