Gone to diesel? Some questions for those that have.

I upgraded 9+ years ago from a small(5.2L) gasser and will not go back till we quit RVing or they bring back a large displacement truck gasser in the 8L area. Extra maint. and fuel cost was not a concern when I bought, we needed the extra grunt. We used it and continue to use it as a daily driver. It has only cost me tires and normal upkeep in those years and now has 148k and counting. Oil and filter from W/M and fuel filter from local parts store. I provide the labor and disposal. Life is good.