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
randallbExplorerJun 04, 2013My guess is an over filled engine. The OP says he has to add oil every 900 miles but does not say how much. If it is between the marks it does not need oil!Randy
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