I pull my return line from the coolers put a piece of tubing over the line & into a bucket... I run it for 10 to 15 sec. shut it off & then add a few Qts. repeat it a few times cycling through the gears the last couple times... you can see the flow go from the used to bright color...then top off... obviously an assistant is very helpful...
I do this every other year... probably about 12 to 15K miles...
My Desertbilly flush...
Curt
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