Thanks Dorin, as always valuable knowledge. This "refresh" is only recommended for cars with lower mileage, hoses still in good shape, etc. In my case, my hoses are still black in color, as you mentioned in our conversation a good tell tale sign when you see hoses and plastic parts turning brown, they are at the end of their service life and should be replaced.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards