What is the correct running temperature for oil, My car runs at about 70'C. But if i go for a motorway blast, off boost though, the oil temp jus keeps dropping and goes as low as 55'C. So am i right in thinking that the engine is running on cold oil and can be getting damaged?

Or should i just nail it everywere and keep it in boost?

cheers

danny

My oil temp gauge used to read around 70'c after 10mins driving and would'nt budge, although I don't drive hard.

I had to move my number plate recently cos I was pulled over for it being too small, so a standard size one is now in the middle of my wings west bumper mesh and my oil temp sits just above 100'c now IIRC after about 7-8 mins of driving.

Sounds like you have good efficent cooling, (my pipes could be all gunged up for all I know?)

I would guess at around 95'c for a normal car driven enthuastically (4500rpm changes)

?

Sounds like you have good efficent cooling, (my pipes could be all gunged up for all I know?)

 

Efficient cooling? Sounds like he has a problem. 55 is way too cool. The oil's lubrication properties will be completely different with the viscosity at that temperature.

 

I'd check the gauge, guessing you're using aftermarket gauges since the stock dash only measures oil pressure. Something's not right there. Coolant should be at least up to 80 when up to temperature. When oil comes up to temperature, it's not going to be cooler than the coolant!

Edited October 1, 200816 yr by FunkySi

coolant is normally about 70 or 80'C. I can get the oil temp up if i cane it but at any speeds above 50mph and i can watch the temp drop.

As far a i know i have a toda motorsport high flow oil pump, 24 row mocal oil cooler, mocal thermo oil cooler flow valves. Not exactly sure about that lot, just had to look at markzx's rides for the spec. lol. Its his blue Z. And yeah, got aftermarket gauges. So i might be killing the engine and turbos all the time then? I do know the car is running rich and needs a remap, can that affect it? Would have thought that would affect coolant temp aswell.

thanks again

danny

The richness may be caused by the oil temp being too cool. If the engine is running too cool, the ECU will just keep it in warm-up make like a choke and will just keep adding more fuel to the mixture.

Any ideas how i may solve that? There is an electric fan that seems to come on at 80'C, but i thought that was for the coolant rad, which is also massive, gota say, mark made this car to stay cool, if we get some warm weather i might challenge myself to get it hot. lol. There is some smoke when i boot it, but looks more like an oil smoke than rich smoke.

cheers

danny

Nobody got any ideas about this?? Or do i have a unique problem. What i might actually have is a solution, i thought Z's had problems overheating. Just put on whats on mine and all your overheating problems will be solved.

danny

Nobody got any ideas about this?? Or do i have a unique problem. What i might actually have is a solution, i thought Z's had problems overheating. Just put on whats on mine and all your overheating problems will be solved.

danny

 

Have you tried contacting Markzx and seeing if he remembers anything strange about the temps?

He's a busy man, he's on here a lot so thought he might have commented. Probably thinks im driving it to softly.lol. Spoke to phil from blackmore/c&s wood today, he says the oil cooling system on the car is a bit on the overkill side, but on the plus side,ill never cook the engine, recommends making some kind of removable wind shield on the front bumper so i can remove it for trackdays, but for general driving cover up some if the coolers. Ill give it a go.

Let you all know how i get on.

cheers for the help and advice all.

danny

See if you can permanently put some ducting over a third of it and encourage the air somewhere else (rad or gearbox...)

Now't wrong with driving it softly, probally why I'm still on original tubs and engine after 15years, 95,000 miles, touch wood!

where's the oil temp sensor situated?

Yeah you might be getting a reading from the oil coming out the cooler not the engine etc

Hmm, good point that. Ill try and find the temp sensor, no idea what it looks like but ill find out and get on the hunt. I can probably angle some of the air towards the air intake. Where would the standard oil temp sensor be??

danny

Hmm, good point that. Ill try and find the temp sensor, no idea what it looks like but ill find out and get on the hunt. I can probably angle some of the air towards the air intake. Where would the standard oil temp sensor be??

danny

 

 

If you look at the oil filter its on whats called a sandwich plate. The sandwich plate screws into where the filter should go and the the filter onto the sandwich plate. The plate has holes in it to accomodate different sensors, oils pressure and oil temperature.

Thats where most people put em, and Its where I have mine.

Sorry I just assumed from the start thats where yours was.