I’m borrowing my grandpas 2004 GMC 2500 and like an idiot I wasn’t thinking and filled it with gas. I put 23 gallons of gas in it. I never cranked it, I pulled the fuel pump fuse and turned the key on to put it in neutral but I never cranked it. I pumped the tank empty but I’m not familiar enough with Diesels to know what I need to do next. Do I need to drain the fuel filters before cranking it? Please help!!