thanks mike, you're always a huge help. n you're right, i don't think its been changed, so i'm in a hurry to get it changed. this is for my 521 btw. i have two small leaks, i already found one that is coming from my oil pain, it looks like its the gasket, which im going to replace asap. and the second leak is coming from about the middle of the tranny, where the drain plug is at from what i could see, i'm not 100%, it started to rain today so that stopped me from doing anything. Ill make sure to only buy GL4, or anything yellow metal safe, i know kids at autozone always try to get me to buy other crap thats not good for my truck.
I've been meaning to ask you, you had mentioned to me in another thread to use delo 15w-30 i think it was, i noticed we use that oil in our diasels at work, and it says diasels use. Is it safe to use that oil in my l20b?