Several things. I had taken my truck to dealer and had turbo cleaned and some new EGR parts replaced.

If you will notice I did not install the remote bypass as suggested. I kept the orginal filter in place and routed the oil line from the top of factory filter housing to run to the bypass. I then ran return line back to the oil filler cap. To take the sample I simply loosen the oil filler cap, start the engine and then lift the cap and dump some oil in a container and replace the cap.

AMSOil website has it listed on their site for customer installs.

The Mobil 1 is synthetic.

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CUMMINZ NC
2007.5 CTD, QC-DRW 3500 BFT Laramie, Smarty S-67, AMSOil Dual-Gard Bypass, Custom Line-X 4x4, 4.10LS, 988s, 68rfe, MBRP 5", Mobil Delvac. Yukon free spin, 19.5x245 G647 Goodyear's - 2006 - 37RLTSD Cedar Creek-Day Dreamer
My 2007.5 DRW Truck at www.CumminZ.com