Normal coolant and engine oil temps...optimal temperatures?

In my opinion, the oil is too cold.
what viscosities are you running?

I would really look into fitting an in-line thermostat or cover the cooler when not doing track-driving.

But it mostly depends on what viscosity oil you're running.
5W40 might be OK, but the oil might still be to cold.
I think you need to raise your oil temperature.



Edit. I have no oil cooler but will fit a themo one for next year.

The oil temp quickly raises to about 80-85 degrees C. By going a bit faster (highway speed) it exceeds 100 degrees C. Going rally fast will raise it to about 110-115 degrees C and sustained fast traveling will make you reach higher temps.

I run 15W50 oil fully synth.
From what I've heard the optimal operating temps for most synth oils are about 95-120 degrees C.
Well the 15W50 can take alot higher punishment. But I don't have any figures.
think I've read something about 365 degrees Celsius. But then I suspect other bits might fail on the car.

Yep, your oil is too cold. Before I saw that you had an oil cooler, I suspected you did. Oil is only just reaching running temperature at 80, and is engineered to run most efficiently at 90-120. Running at 80 will not be doing your engine any favours.

As Yako suggests, you need to get a thermostatic control on your cooler.

yeah, i really need one.

Anyone know links or suppliers for one? I've asked a few workshops and they don't know where to source one.

So...giving it a boot when it's below 75 degress is doing damage?

ive seen one in drift works.
www.driftworks.com

im sure they send to your side of the world.

I'd be surprised if one of the ns.com traders didn't have something...