2003 chevy 6.0, fuel into oil
recently our diesel chevy was smoking white pretty badly, so we replaced 4 of 8 fuel injectors. after getting it back from midas(they had no idea what they were doing) we found that the fuel was leaking into the oil. today we were planning on replacing the other four injectors but the fuel line going into it wasnt tightened enough so we were thinking that thats how the fuel was getting to the oil. i was wondering if anyone has had this problem and if i should just change the last four or just tighten the lines back up and hjope for the best.
F-150 5.0 4wd