Cummins closed crankcase filter

Needs to be changed every 40 - 60,000 miles

Cummins 6.7l valve cover

Denoxtronic2.2 DEF

Leaking DEF Lines

DEF Repairs HDX

Marc,

Just a quick FYI example of what we are working on, this is a DEF control unit that is leaking. Step by step repairs and then retest.

Thomas bus DEF fill

Need to rinse this area once in a while. Crystals can actually cause problems.

Ford 2012 cap and fill