Does Flushing Old Diesel Oil Actually Work?

0:00 Introduction to the car 0:47 Shopping for tools 7:20 Purchasing oil and supplies 10:25 Lunch break 11:20 Setting up the workspace 20:33 Preparing for oil change 27:47 Performing the first drain 37:13 Refilling and testing oil 51:35 First test drive 1:02:06 Second oil drain and check 1:14:03 Third oil cycle 1:21:39 Project conclusion