believe it or not, for whatever reason driving with the AC on causes the oil temps to go down.

So your suggestion is for us to not use oil coolers because GM doesn't, and come up with a custom system similar to what GM uses. Great, we'll get right on that.

Ok, let me put this more on your level.

Plate cooler gets oil too cold.
Manufacturer got rid of plate system and spent time/money to develop a cooler that would not make oil cold.
If oil not too hot, don't make oil too cold because of imagined problem.
Learn from big corporation. When big company spend money, usually viewed as a necessity.

Better?

Ok, once again, youre trying to relate GM to the Z. GM had problems with oil coolers and redesigned their crap, [sarcasm] SOOOOOO every oil cooler must be crap and therefore not used until it matches GMs far superior engineering. [/sarcasm]

220+ degree oil temps in a Z is not healthy for an engine, IMO. From an engineering standpoint it might be fine. Either way, I DONT GIVE A F*** about GMs experiences with oil coolers on Vettes.

-220* oil temps are just fine.

-This is a discussion about engines and oil and manufacturer names are just incidental.

-Plate style coolers tend to over-cool the oil. Further, unless you install a bypass for them, they aren't the safest setup. You can of course install a thermostat or buy a plate cooler with a thermostat in it, but the point remains that you are doing this because in your mind 220* oil temps are too hot.

-Check your "IMO" at the door IMO is worthless in a technical thread. For once try to support your emotionally charged BS with fact instead of Fanboi nonsense.

Do you know how we can modify our engine blocks coolant/oil channels to achieve the same affect that GM is doing? Your "contributions" on these forums is seen as little more than trolling.

This is because the ECM response to the A/C on by turning on the hi-speed cooling fans. It moves more air in the engine bay/through the radiator which cools the coolant which in turn will lower oil temps a bit.

im sure it is, I just find it hard to believe, I've seen oil temps drop as much as 30 degrees.

You missed the boat. I did not intend for you to undertake any such engineering. I simply posted that little-known information as a way of showing you how much issue a plate-style cooler can cause that a corporation as large as GM, after implementing it on a car for half a decade, would spend the time and money to get rid of it. That's all. Now if you want to go and add it to your Nissan because its not a GM and so no information pertaining to oil and engines that GM has is pertinent to you, go for it, man, I really don't give a damn, just trying to throw some info out there for people to ponder before they do something that they THINK is a good idea because IN THEIR OPINION 220* is TOO HOT for an engine.

Nissan put the limp-mode at 260. Probably put it at a safe point.

If you want to talk about trolling, lets talk about people encouraging others to spend money on **** they don't need because of their opinions.

What kind of coolant temp drop do you see, and which one drops first?

There's actually a lot about this I agree with.

A lot of Z owners jumped on the bandwagon, feeling the need to install an oil cooler on the car. It's simply not necessary for most users, and many street-driven cars won't get the oil up to proper operating temps with an oil cooler installed.

I've seen plenty of users bragging that their oil temps stay below 170 with their cooler. At that temp, most oils aren't properly protecting your engine. Ideally, you want temps of around 190 during commuting, and most synthetics these days work best between 220-250*, which is where you want to be during hardcore driving.

Right, you didnt exactly say "design a better system" you just said "dont run a system that has some drawbracks, even though there is no alternative."

220 oil temp is safe yes, but i easily saw 240+ on the street here in NY. While the temperatures wont damage the engine, they certainly resulted in noticeable performance loss, not to mention the fact that the oil itself will thin out and wear down faster at those temperatures.

Because the last 5 years have taught us that big companies will definitely spend money where they deem it necessary for the regular ol consumer.... yeah....

before your hashpoint of telling him to keep his IMO out (bolded for you), you simply stated your own opinion as well. Except for you didnt add "IMO". Otherwise as you told him, support your "tend" to statement.

Although I am sure that there are bad oil cooler setups out there. Same way there are situations where an oil cooler is also needed.

Since you seem to be so passionate and informed regarding that style cooler, why not develop it yourself? sell it to everyone and make a killing on it? That is unless, its not gonna be easy to develop, take too much time and money, isnt worth it. And so we are left with the options presented to the OP in the first place.. a 19 or 25 row with a thermostatic plate.

Yah its funny that we should follow in GM's footsteps.. since they obviously employee the best engineers in the world. Definitely better than BMW, who does use a oil cooler on their cars instead of a "lets put coolant near oil!" box.

maybe, but installing an oil cooler to keep temps at 200 is fine also

no, its not incedental, you placed GM into this thread as if no one should use oil coolers b/c of GMs crap.

^ NOW THAT ^ would be a great post that brings a good technical point to the thread. And yet it had nothing to do with Corvette ********.

ok

Oil gets well over 300* in the engine at certain points in its cycle. 240* in the pan isn't going to kill it. Yes, it will break down a touch faster, but with a good oil that shouldn't be an issue. It's well within the oil's designed operating parameters.

On the flip side, if you put a cooler in there, during the rest of your normal driving the oil might well be 150-170* and not protect nearly as well as it is thicker, has more resistance to flow, hurts fuel economy, and is not up to it's designed operating point.

There is a reason GM went to the trouble of preventing their cars from running around with mid 100* oil-temps.