does my car have engine oil cooler !! PIC & VID inside
 

after first oil change, i noticed that my oil filter fixed to this peace which looks like an oil cooler (oil to water type)
i don't know if its there because mine is 2011 model or because its a GCC spec.

sorry for the poor pic and video, it was over 46 C over there and couldn't think of taking better picture:icon17:

i dont know if there is another hose connected above . but i think there should be one

can someone correct me if i'm wrong? is this is what i think ?

if its really an oil cooler , i cant imagine what would happen to the engine if used in me regon without the cooler

now im getting easly 105-110 C normaly at 47~50 C ambient


http://img835.imageshack.us/img835/5108/img0336tw.jpg




http://img337.imageshack.us/img337/5634/img0337ul.jpg

That's definitely an oil cooler of some sort, but it's not like OEM setups I've seen on Evo's and BMW's.

Refer to AK's oil change tut to see what this area looks like on a 2009-2010 USDM 370Z: http://www.the370z.com/diy-section-d...es-inside.html

you should post bigger pictures! ;)
:roflpuke2:

Looks similar to the OEM cooler on my old Audi S4. Routes coolant to the oil.

That's an interesting find, thanks for posting it. I wonder if that is a factory part for Z's sold in parts of the world that get extreme heat or new for '11 models like you said.

Whaaaaaaaaaaaaaaaaaaaaa

looks like a coolant type oil cooler/oil warmer

That's very interesting! I'd like to see where it goes too!

hmmm

does anyone know if the JDM 370z comes with an oil cooler?

so was this car bought in Kuwait? If so then I would say an add-on when it arrived in country.

One goes out with oil , one goes in with oil, where is the other one?

The messed up thing is the 370Z not having a factory oil cooler in the states, but all the VQ35DE Altimas have it stock. WTF??

No oil cooler on the sports coupe and the family sedans all get one! HUH???

It looks like it is a return line :confused:

I almost wanna say that it was done to keep the price lower in order for Nissan to market the Z as under 30K. The 2011-12 might have it......

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

in 2010, nissan prices went up $480 from $29,930 to $30,410 for $100 heated mirror upgrade and a $10 filter. So in my opinion, The whole under 30k thing was a publicity stunt due to the hyundai genesis coupe hype. Nissan doesnt provide an oil cooler cuz they dont care. As much as i love nissan performance. Todays nissan CEO's can care less what the consumer thinks. All they care about is there corporate battle with BMW, making money and pleasing the car magazines zso they can keep getting the desireable reviews in order to keep us wanting to buy the car. Its all politics.
They know we americans, dont judge cars on actual performance, we judge on popular opinion so nissan has lost communication with its fanbase knowing they will sell more cars through a car and driver article than actually giving the enthusiast what is needed. If the designer himself wasnt a young car enthusiast like we are, And he wanted to truely make the best Z ever... The z would probably be a flop now due to corporates blind decision making. long story short. thats why i feel the Z doesnt have an oil cooler.

Nissan is about to merge with Mercedes, maybe they will learn something about customer service.

Everyone,
It is indeed an OIL COOLER. That setup is exactly what comes factory on the old 350z/G35 VQ35DE engines. It uses engine coolant to cool the engines oil. As many of you know, engine oil can get much hotter than the coolant. This is something Nissan has apparently carried over from the VQ35DE engines for other countries.

I am shocked that Nissan did not keep this sub system to begin with.

so people trying to install an aftermarket cooler will have to uninstall the entire assembly correct? I wish we can see how this pseudo oil cooler performs at the track. I'm willing to bet not too well.

so basicly nissan is admitting to extremely high temps and tried to throw a cooler on the 2011 models. What about us 09/10 models. Guess they dont care?! :(

You should not have to remove that piece since the OE Filter still screws on. You will basically be daisy-chaining two oil coolers together. If you have this version of the 370z, I might consider NOT getting thermostatic sandwich plate adapter since the engine coolant will help raise the temperature.

Nissan has used this style oil cooler before. I am really shocked that they did not keep it on the VQ37VHR engine. I just looked in the Nissan parts catalog and the VQ35HR does not even have this cooler. Only the VQ35DE has it.

Sweet, so a motor producing more HP they take it off... lol

I added a thermostatic sandwich plate to my Audi that had the "coolant cooler". The result was great (at the track I would get close to 300F, with the cooler it was closer to 260F). Ran it summer and winter in Chicago. No issues.

I've done this on Audi's too. Worked fine.

Just an FYI, the oil cooler above circulates coolant as previously mentioned to warm the oil when it's cold and cool it down when it's hot. It's not very efficient though and a separate aftermarket oil cooler does a much better job at it.

The hard lines go all the way to the heater pipe on the driver's side engine head. The other outlet for the cooler goes to another water pipe located right under the exhaust port on piston #6 on the driver's side engine block.

As far as which models got it, it comes on all VQ35DE although the pipe routing is different. It does not come on the VQ35HR and VQ37VHR in the US regardless of the model year. It DID however come pre-installed from factory to all G35's, G37's and 370Z's shipped to the Middle East and apparently Australia as well. I'm assuming there's more locations yet to be known.

The same oil cooler is also installed on all AWD G35's and G37's regardless of location.

Anyhow, below is a diagram from the FSM showing the routing of the pipes. This is on an HR which is identical to a VHR.

http://img.photobucket.com/albums/v2...vage25/GCC.jpg


The image above shows the oil cooler/warmer system with all the associated water pipes circled in red. On cars that do not come with this system, water pipe #13 does not come with the small water outlet that connects to hose #11. As for the other water pipe #12, it does not exist and is instead replaced with a block off plate mounted straight to the engine block.

The picture below shows an HR block with no oil cooler/warmer. The upper water pipe has no 3rd outlet and the lower water pipe does not exist.

http://img.photobucket.com/albums/v2...heaterpipe.jpg


http://img.photobucket.com/albums/v2...eaterpipe2.jpg