Alright I have an oil leak I am trying to track down. I am pretty sure it's coming from the front of the valley. What is up there to leak?

IPR, non serviceable plug of HPOP, HPOP fittings, HPOP itself I guess could be possible, any other suggestions? I might try and use a inspection camera and see if I can narrow it down.

 

Those are all the usual culprits. Time to do a little CSI work.

 

For mine, it was a serviceable plug on the back of the HPOP, but when it went, it dumped 3 of my 4 quits of oil in about two miles. I think you are on the right track. Simple Green and a garden hose clean things up real nice to get a real good picture of where your leak is.

 

Mine is a slow leak right now but really pissing me off. Have the valley all clean when I did my turbo swap and up pies and it is clean anymore, and dripping onto my driveway to top it off.

 

IPR O-ring is a primary, inexpensive, and easy suspect. I'd start there - if nothing else, it's preemptive.