Talk:Duramax V8 engine

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I'm trying to get info on what products people have added to there 2006 duramax to get better mpg. Would like to know what the mpg were and went to after putting the products on it. my email address is Shane.shultz@rheem.com I pulled a 3800 camper 200 miles one way running 75 only got 9.5mpg diesn't sound right to me, any help would be great. thanks 18:27, 1 June 2007 (UTC)~