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<p>[QUOTE=&quot;Long FLD, post: 11425956, member: 160797&quot;]20k is going pretty extreme on a Cat. But…are you adding a gallon as soon as it’s a gallon low? Have you ever tried running it with the dipstick showing a gallon low and see what happens? Cats kinda had the reputation for burning a gallon off and just staying there until service. But if you’re really burning a gallon every 1000 miles once past 10k then your engine is telling you to stop doing that. You’re basically doing an oil change without changing the filters.[/QUOTE]</p><p><br /></p>

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