I use full synthetic Delo 400 from Costco (now they sell Kirkland branded oil) I change it myself after 10k but before 15k sending one or two samples to the lab per year for analysis. When I run out of Delo (bought a bunch when I heard they were going to house brand), I’m gonna run the Costco HD synthetic diesel.
For a quick mess free oil change take a look at a Femco drain plug. I also use Fleetgaurd Stratapore LF16035 oil filter manufactured by Cummins Filtration. I can change my oil anywhere in about twenty minutes for $40 and not spill a drop.
16’ Ram 3500 6.7 Cummins/Aisin SRW 322,000 miles all stock.