Seems fine off the line but anything above 40mph and it takes FOREVER to get anywhere. Checked the banjo fitting on the intake manifold and it wasn't that gunked up. Fuel at the prefilter is fine. Ran dieselkleen thru the tank. It does smoke white constantly and smells like diesel not too bad though. Gets decent fuel economy.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k