Originally Posted by michigan maniac
What type of vehicle? Most rear mains nowadays are one piece, so your gonna have to pull the trans back or out, I would Deff try the pro seal... If its not pissing right out its not worth replacing, also from what I've noticed synthetic oils tend to leak more compared to conventional oil, rotella would Deff help also
Didn't see this till now....it is a 96 5.7L vortec; I believe it is a one piece rear main. Not 100% right now.
It isn't pissing out; I did an oil change a couple weeks ago but the oil isn't low or anything yet. It is not leaking a lot but it is leaking.
I will try the pro seal; and I believe I am going to switch to rotella 15w-40; I've read a lot of good things about using it and I know a few people that run it on 200k+ engines and have always run it.