oil cooler

jaedub

I live in California where weather hits 100+ and let me tell you........YOU DONT NEED OIL COOLER. Im always at 18-19 with AC blasting (AC causes engine to heat up even more FYI) at 90 degree weather.

HOWEVER........many 370z owners downshift and/or shift at a high RPM hiting 4-5k almost every shift ( I dont know why but its gonna kill the engine). If you're planning on shifting under 4k and not downshift, I can guarantee you YOU DO NOT NEED OIL COOLER.

If you're one of those obnoxious driver (always having your engine in high RPM, downshifting for no reason), then get the oil cooler

And of course install a oil cooler if you're gonna plan on tracking your car.

daisuke149

well, if you ask around, i shift normally 3k and despite that, cruising on the highway at a steady speed my oil temps had hit 230 since then i got an oil cooler.

if yours doesnt have issues congrats. but there are many many many many who had the temps go up kinda high (not 280) just driving around and im sure that were all not "obnoxious" drivers.

esfourteen

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

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ImportConvert

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.

esfourteen

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

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ImportConvert

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

jaedub

Im dumbfounded by this.........is this really true?

I know for fact that HP on the car goes down once the AC is on....

Anyone care to explain?????

OrangeJuice

To condense all the back and forth down to a simple few words:

Couldn't hurt, but isn't necessary.

There, that's really about it.

Oh...and apparently GM>Nissan

esfourteen

As import pointed out, its likely the secondary electric fan that kicks on when the AC comes on. It cools the engine more, which in turn would affect the oil temperatures.

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ImportConvert

My '95 TA would shed about 20-30* on the coolant temp when those fans came on. Ran with the A/C on in traffic and it was about 190-210* vs. 220-230.