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
Carvin_MarvinExplorerJun 04, 2013I have 80,000 on my 8.1 and it uses 1/2 quart every 1500 since it was born. That is normal usage.
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