Depends on the engine in the Freightliner truck.
Some require as little as 2 gallons, others require 11 gallons.
Intake valve sensors.128 385 03
12 quarts with filter
15W-40 diesel oil tends to be used as a 'default'. If it's made after 2007, you'll need API-CJ4 rated oil. Really all comes down to the engine and environment you're operating in.
Using a Sierra Classic 1500 Series Truck I came up with 6.1 quarts
Approx 12 quarts
13 quarts of 5w40 synthetic diesel engine oil.
With a 48re approx 15 quarts With a 68rfe approx 17 quarts with a AS68RC approx 13 quarts
The Cummins in a Dodge truck did not get EGR until 2007 with the 6.7L.The Cummins in a Dodge truck did not get EGR until 2007 with the 6.7L.