Hey y'all, I'm about to go change the oil in my 90 MJ (4.0 straight 6). I've done an oil change on a 97 3.0L V6 Grand Am before (my only other car), but that's about it with my experience in working on cars. I'm pretty sure the oil is put down the hole on the top of the engine block of the straight 6, but I just wanted to check before I do anything stupid. Sorry for the ridiculous question, but hey, you gotta learn sometime.