Wtf Is Going On? (Oil Leak)(Pics)

[CSB]

Ok so I drive my car only on weekends. Haven't had much problems apart from a slight leaking power steering pump which was recently fitted by a popular garage in the uk. Anyway as I got home last night, reversing in to the garage I notice a trail of oil, now I'm thinking wtf. Look under the car as it's running and it's dripping oil. Turn it off. Have a gander in the engine bay to see how what's wrong and can't see anything. Did hear it was making a weird gurgling noise coming from the radiator pipe.

Today since I had time to inspect, I jacked up the front and it's coming from the driver side. It's not the cam half moon seals as I got that leak sorted last year and the area looks bone dry. It's not the dip stick as that fits in firm and wasn't even sticking out. Btw it's now reading low on the dip stick. I do have an oil filter relocation kit fitted.

Here are pics I've managed to take today:

You can see oil dripping alongside the power steering rack. Can also see a drop of oil on the oil filter relocation piping from the engine. Haven't started the car since yesterday.

You can see that it's also leaking on to the subframe. The passenger side was fine.

As I was laying on the floor under the car, contemplating my existence and wtf is wrong with the car now I noticed drops of oil coolant forming on the bell housing and progressively getting worse, probably since the car was jacked from the front and not level. I then decided to drop the front down and call it a day.

So now I'm trying to narrow down the leak. Rear main oil seal? Headgasket? Bearing in mind that this seemed to happen all of a sudden. What's the cost I'm looking at? Will order some more oil. Thinking about getting it trucked to a garage on weekend. Hold me guys I'm not gonna make it...

[GeeDog]

Run your hand under the oil sandwich plate & see if there is oil there. We have an oil cooler, and an o-ring on one of the plugs in the sandwich plate (the ones you remove to fit a pressure or temp sensor) had broken. The oil ended up as far back as the middle of the car.

Bear in mind that (unless you reverse really fast) the oil will go backwards as you drive, so look for the forward-most point with oil on it & your leak will probably be somewhere close by.

[CSB]

Its wet around the sandwich plate so looks to be the kit that is leaking. Leaking on to front diff then dripping on to front subframe.

The only way I can see is to take off the plenum. Easy task?

[Dose Pipe Sutututu]

curious, what's that garden hose coming from the front to the back?

[GeeDog]

Its wet around the sandwich plate so looks to be the kit that is leaking. Leaking on to front diff then dripping on to front subframe.

The only way I can see is to take off the plenum. Easy task?

Sorry - no idea on a GTR, ours is a GTST and while access is tight it was easy enough without removing anything else.

[CSB]

curious, what's that garden hose coming from the front to the back?

I have a catch tank that vents to atmosphere. To stop the fumes going back in to the cabin I connected the pipe to the catch tank all the way to the rear near the exhaust so I don't have to put up with the smell. Works good.

[SargeRX8]

Haven't taken a plenum off a GTR but I do know you will probably need a new gasket kit ready to go on as the old gaskets might be dry and could crack when you take them off. Better to be prepared for the worst.