The line is to feed an oil troll that lives in his engine compartment, so no return needed!

Yes i bought it ib kuwait , and no deffenitly not installed by my dealer

Thats another possibility, next oil change i have to check if there is another line above yh filter

Is this is a guess? Or you know that ?

You can try luring him out with a bottle of Ester oil, best way to find out for sure. That is their favorite.

Follow the hose and see where it goes.

:wtf2:

Moar info!!!!!!

An australian 370z also looks like it has the cooler.

http://www.the370z.com/members/marky...3-img-4533.jpg

Looks like an in-radiator cooler like most automatic transmissions have.

did we JUST find this out??! how is the effectiveness of the cooler? can we fit this pretty easily if we buy the parts? i can't believe noone realized this big of a difference til now...

definitely looks like a coolant type oil cooler. a lot of toyota's use that.

the hard pipe are going up, not forward so they are probably plumbed in with the other coolant pipes like for the heater and throttle bodies.

By the time you pay to get one of those on, you might as well buy a real one.

The unit circulates HOT coolant to the sandwich adapter, oil never actually never leave its current path.

Why is oil temp such a sensitive subject with the Z guys? It's like telling a girl fat or something

Please note in this picture how large the power steering cooler is compared to the one fitted in the u.s spec.

and no its not an aftermarket part, it comes from the factory like that.

That's exactly what it is. Very similar to Audi/VW systems as mentioned above. Coolant is circulated through the round heat exchanger to:

1) Bring the oil tems up faster as the water heats faster than the oil

2) Provide a slight cooling effect when everything is up to temp.
I say "slight, because if your water temp is 200 degrees and your oil 230, the delta between the 2 is only 30 degrees. Not as much a cooler as a temp stabilizer.

3) The only downside to this is that the Oik heat is transferred to the water cooling system putting additional load on it. Luckily the Water system on the Z seems pretty robust with a good amount of headroom so this is probably not a problem here...

Here's a picture of a VW "Cooler" that also sandwiches between the filter and the filter mount..

http://images26.fotki.com/v940/photo...SCF0016-vi.jpg