Another 22’ Ram 2500 truck 4WD with 6.7 Cummins. 25k on truck. Had only 2 oil changes; one at 13k and other at 19k. Dealer did last two; never touched factory filter. Can you say “LAZY” 

Put a Mobil 1 filter on and Rotella T4 10w30 oil in. 26k on truck at the present.
Put a Mobil 1 filter on and Rotella T4 10w30 oil in. 26k on truck at the present.