4500

just got a ford 4500 diesel backhoe. wanting to change oil to start i don't know what oil they were running in it. i believe it may have been regular 10-40w conventional oil. should i stick to that or should i put in something like shell rotella or mobile delvac?

OK folks I am officially the proud owner of a Ford 4500 picked it up for two grand after parts paying a mechanic to help me get it started and he also had a big ass truck and trailer to help me get it home a new starter and solenoid. I’m into it for three grand, I will send some pictures. You...