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  1. Sticky: 2006 Chevy 2500HD, Crew Cab, 6.6L Diesel, stock,...

    2006 Chevy 2500HD, Crew Cab, 6.6L Diesel, stock, no load highway at 60mph, 21mpg. At 70mph, 18mpg. Towing 8500Lb. 5th wheel, 11mpg average at 55 to 60mph overe 8,000 mile trip.
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    White powder on aluminum engine parts

    I discovered a bloom of aluminum oxide on most of the aluminum chevy parts on the engine on my Duramax today. It makes it look really ugly, and I don't know what to do about it or why it suddenly...
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