Oil temps: 335 comparitive observation.

2011 Nismo#91

Me too.

Anyways, corvettes have the same issue with the oil temp getting very hot if you push them. This is nothing new, all your standard production cars will overheat their oil if you push them hard for some time. Its just you won't know you're doing it because 99% of all these cars don't have an oil temp gauge. If we didn't have an oil temp gauge and limp mode no one would even bring these topics up.

The oil weight that is recommended at operating temp (100c or 212f) for this car is a 30 grade.
If you are seeing high temps constantly switch to a 40 grade.
You can see in the chart that a 30 grade oil at 212f has the same viscosity as a 40 grade oil at 240f. Those these only come in 10w40 commonly so you will lose some efficiency for cold starts because the oil will be thicker then a 5W.

JARblue

Mobil 1 makes a 0W-40. It's their European blend. And it only costs $25 for 5 qts at Walmart. I know a number of forum members are running it. I was considering it because the Z runs quite warm. I may try it for my next oil change to run through the summer. We'll see.

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kenchan

yah, i suppose that is a good idea to use different viscosity for certain conditions if the 5w30's not cutting it.

2011 Nismo#91

It doesn't feel right with you making normal replies to posts.

kenchan

if it's a valid post, i reply with a valid reply.

only when dumbarses post useless shitt or dumb quesitons here, do i post for enterTrollment.

Mitco39

I took a drive in the mountians this weekend. With the oil temp probe in my oil pan on the freeway at a constant 70mph the oil temps would sit at 210F. On some windy roads at about 50mph the temps would climp up to about 225F. Keep in mind this is not while driving it hard, this is while following campers and other motorists through winding roads. Nonetheless it seems quite high to me. I didnt notice any change in throttle response or in the way the car performed however.

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Pelican170

Mine usually sits at exactly the same or a little higher, usually the 220 mark. This is regardless of what the ambient temp is but of course if I start driving it hard or am in a lot of traffic, it will rise higher. At first I was concerned about oil temps when I bought my car 4 years ago. After reading a bunch and keeping an eye on how high it gets (never seen it get over 250), I dont worry anymore and consider it normal. Ive also never noticed any loss in power. Maybe when the ambient temp is 95 with 90% humidity, but thats not due to oil temps...

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JARblue

I've cruised hot Texas highways for several hours and seen my oil temps creep up around 240F at 80 mph in past summers. IATs are through the roof when stopped and timing is definitely being pulled.

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kenchan

yah, my temps are 210-220 range in the summer. nowhere near the 240 when i start worrying.

and my ride is a 09 with no oil cooler. i have no need or any plans for extra oil cooling.

b15

I've only had mine up to 240 once, and I was on it hard in 90+ degree weather. Usually sits around 210-215. This weekend I went on a spirited run and it hit 220 a couple times and settled back down to 215 once I left off. I've been eyeing a 19 row cooler which should suit my driving style perfectly. Hoping to get it this summer, we'll see if I get around to it.

DLSTR

Sounds like u don't really need one. You are in no way punishing the motor or the oil. If u track then I'd look I to it.

b15

Yeah, that's why I'm not in a huge rush to get one. Just waiting for a good sale. With the 19 row and a thermostatic plate, I won't need to worry about oil temps when flogging it hard or about the oil not heating up enough.

Jordo!

Believe it or not -- simply adding metal fins to the oil pan has kept my oil temps about 10 -15* cooler, confirmed on two different 370's.

Search for ARC cool fins -- they use a heat conductive adhesive as well, and while simple and kinda "ghetto" seeming, it does help pull heat away.

I have 2-3 all over the underside of the oil pan and another couple on the dif. On the dyno, oil temps drop down faster between pulls with them as well.

In normal somewhat spirited driving in FL i typically see temps around 200* - 205* F tops, and logged around 207* F on Cipher. In prolonged drives in the heat -- 220* tops. I've never seen it go past that after the fins were added, whereas before it might creep as high as 235* -- still not hot enough to really worry, but the fins are very cheap and do actually work as claimed.

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DLSTR

Good data and post!

Jordo!

Well, perhaps JDM Home Depot

But, thermodynamics predicts that the extra surface area of metal fins will extract and disperse heat, and lo and behold, they do.

For the ARC fins, which are, after all, only stuck on, the key is surely the heat conductive adhesive -- any old regular 3M trim adhesive tape would presumably not work very well.

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