I am with you, but I usually don't go long enough for my car to get to 260F. To hit 260F+, I have to go balls to the wall for 3 or 4 straight laps. I have to say my tires and brakes will get too hot before I have to worry about the engine.

I ran 2 sec slower than the only GT-R I saw at VIR. I blame it on my 255F oil temp. I must have lost 150HP with the high temp compare to my 180F on the street.

The ones who preach about how much high oil temp hurts are probably the same people who tell us VDC only slows you down if you are not a smooth driver :stirthepot:

i run a constant 220-230 on the hwy in houston. But its also 100-110f everyday!

Anyone ever datalogged the ECM and seen if it's in fact pulling timing as the oil temp increases or maybe there's something else causing it? I know on my g I can feel the car get doggier the hotter it gets but then again it's also a 108* every day so I'm sure that's not helping. Just curious.

The ECU is forced to pull timing as the engine gets hotter. My belief is that it does it in a reactionary way and isn't directly related to oil temp. Others disagree. A simple test would be to disconnect the oil temp sensor or give the ECU a false reading.

I don't think the OBDII system picks up oil temp. The oil temp gets picked up by the ECU, so I am not sure if it is an engine tuning parameter

I understand that. But has anyone logged it and seen how much timing is pulled, how it's pulled (all at once, gradually, steadily increasing as rpm's rise?), and what parameters (oil temp, coolant temp, IAT, all the above?) are used to determine when/how much is pulled? Maybe I'm trying to dig to deep on such a new platform. Just thinking that if we could actually see what the ECU is doing then we could solve a lot of these questions. An oil cooler obviously works but is it solving the problem completely or is it just prolonging the inevitable? Maybe it's still pulling timing but not as severe. See what I'm getting at? Sorry for the rambling. I just like a bunch of technical info. I'm a nerd like that.

once again, worried over nothing. ask any guys who drive on the track and has a datalogger, the top speed on lap 1 is nearly the same at the end of the session. the variance is small enough that you should have nothing to worry about. if you are getting your underwear stuck between your butt crack over 5hp, you got a problem. its a bigger problem for dyno bench and street racer because the cars have no chance to cool or breathe fresh air. once you are out driving, iat is only 5 to 15 degree warmer than ambient

I haven't logged it, you would have to do that with UpRev to really see in detail. I don't really care enough as like Cossie said, as long as you stay out of limp mode it doesn't make that much of a difference on track. It did feel like less timing was pulled when running the higher octane mix, but this could have been in my head.

I add ice cubes with tiny peices of fruit in the middle to my oil. Cools it down and adds some flavor. :tup:

Oil cubes in the sump. You might be onto something there.

if i was into drag racing, i would just pee onto the oil cooler fins since most of the heat comes from heat soaking. a litle yellow coolant cant hurt

We have had over 35 consecutive days of 100+ temperatures in Texas (record is 42 set in 1980) and my 370z is a DD and I have never seen my temps over 240 even with spirited driving thrown in the mix. My temps usually hover around 220 in this god awful heat so, some of you guys must be pushing your car pretty hard on the streets if you are reaching 240+ in 80-90 degree temperatures. Anyway, from what I experience everyday I wouldn't think an oil cooler is necessary unless it is a dedicated track car or you have money to blow.

Side note: I am begging for 80-90 degrees here, at night(9pm-12am) our temps range from 95-100 STILL!)

It's all about how much time you spend in the upper half of the revs at relatively low speeds. Even at mostly 1/2 throttle or less, just high revs and less airflow will kick up the oil temp pretty quickly on a hot day. Most practical street driving doesn't sustain 4K+ RPM very often though :)

Yeah the only time I've seen my oil temps get high was cruising at very light throttle on a long highway trip, and I accidentally didn't have it in 6th. Had my stereo on and stock exhaust(way too damn quiet, can't hear what motor is doing) so I didn't notice it for a while.

I have a major beef with the logic of "You should have used the search function!!!!" I don't know how many times I have been searching for an answer to something on google and I get pointed toward a forum thread where the OP asks essentially the same question(s) I have. And instead of receiving information, usually that person will get berated and mocked by everyone on the forum for asking such a dumb/common/simple/unpopular/whatever question and that person will be told to use the search feature. The problem I have with this is that I got to this page in the first place by searching for my problem! Do you people not realize that this thread is now going to show up in future searches for oil coolers and oil temp issues? You might as well stop berating the OP and just start talking about useful stuff that people might actually be able to use in the future. It looks like this thread has taken a turn toward the 'useful' direction but I'm speaking generally. There is very little resource used for these threads so just make the best of it and stop making someone feel bad for asking questions, and keep in mind that future searchers will be seeing what we're talking about right now.

/end mini-rant.