...that the running temp for most oils is between 60-70 degrees!

My reference to GTRs was to give an example not to start and EVO vs GTR discussion you baboon!

And just for your info oil & water work together to cool engines...
Non-performance engines tend to run cooler than high power ones, hence the oil rad not being present.

My 2 yens worth

 

60-70 C?? Maybe in Japan! On the Autobahn, the oil temp of my Audi S6 goes to 120 C!

 

N.ring...By running temperature I mean the min temp the oil can be effective at. Below this temp most oils have not rached their "running temperatue"

 

BTW...japan tends to be a tad wormer than Germany so your oil would be over 130 here

 

ah, so deska!

 

See, that simply isn't true, what the right operating temp is, depends on what sort of oil you are using AND how it is designed to lubricare and where. For example, the viscosity of oils is measured at -25, 40 and 100 degrees in standardised tests, each showing the different viscosity at the temperature. Depending on the oil it varies a lot, which means it will also vary at 60-70 degrees. It just isn't as simple as saying "60-70 is the right temperature for every oil", cause it isn't. I'm still waiting for scientific proof here... (especially from our Swedish friends)

 

Jesus Mike, why is it you always get defensive at the smallest thing!!

I was just trying to state a general temperature for bloody oils!! I'm not getting into a discussion that this oil is better than the other one now....most oils best operating temperatues start off at 60-70 and begin to brake up at around 130degrees. Thas all!!

Take a chill pill or something

 

Hey, I'm chillin' no problem in da moufou, I just want to get real answers...

 

What is this?? Where are the answers?? First big compaints like "the lancer runs to cool" and then no explanation, why? Or is it maybe not running too cool??

 

I recieved this from HKS in Japan yesterday.

My question:
Can you tell me what the oil temp should be in this engine 4G63?
Its now about 50-60 degres C, shouldnt it be about 80-90 degres C

HKS answer:
"Proper oil temperatures is 80 - 100 degres celsius."

But I dont think that 50 degres C is a problem for an standard EVO engine, but for a tuned one with 400-700 hp with not standard pistons

Ill get back with more information/answers soon

Regards
Magnus

 

This is good info, we need more!! I'll write to some oil companies.

 

Hi Jocce,

I had a look at the new pictures and videos at www.prospeed.nu

 

ok, I have the answers I believe, first here are two mails I got from Castrol Germany, VERY friendly and quick, the guy even called me to explain everything:

Sehr geehrter Herr ,

vielen Dank für Ihre Anfrage.

Gesunde Motoröltemperaturen bewegen sich in einem Bereich von 80 - 120 °C
bei betriebswarmen Motor.
In Ihrem Fall scheint ein Defekt am Fahrzeug vorzuliegen. Erreicht das
Kühlwasser die erforderliche
Betriebstemperatur? Eventuell ist der Kühlmittelregler defekt und das Wasser
wird kontinuierlich
über den Wasserkühler geleitet.
Eine weitere Möglichkeit wäre ein Defekt im Thermostat des Ölkühlers, sofern
vorhanden.

Mit freundlichen Grüssen

Castrol Technik

 

Vielen Dank Herr

es liegt kein defekt am Wagen vor, das Kühlwasser erreicht sehr schnell
seine Betriebstemperatur und der Ölkühler hat meines Wissens gar keinen
Thermostat, dort sehe ich auch eher den potentiellen Fehler. Es scheint dass
alle Fahrzeuge gleicher Bauart mit dieser Temepratur laufen, daher die Frage
ob so eine Öltemperatur schädlich ist. Mir sind keine Ausfälle wegen zu
niedriger Öltemperatur bekannt, also was könnte passieren wenn der Wagen bei
60 Grad Öltemperatur läuft?

Mit freundlichen Grüssen,

Hallo Herr ,

60°C Motoröltemperatur könnten zur Verschlammung des Motors führen, da
entstehende Kondensatbildung und
Kraftstoffanreicherung infolge Kurzstreckenverkehr nicht verdunsten und über
die Kurbelgehäuseentlüftung
abgeführt werden können. Dieser Umstand birgt die Gefahr einer
Viskositätsabsenkung des eingesetzten
Schmierstoffes.
Die Messung der Öltemperatur sollte idealerweise im Ölkreislauf erfolgen,
wenn möglich und vorhanden,
am Ölfilterstutzen. Am Boden der Ölwanne ist das Öl ohnehin schon abgekühlt,
der Fahrtwind verfälscht
das Messergebnis noch zusätzlich.

Mit freundlichen Grüssen

Castrol Technik

 

Aboe my second set of questions and his answer, but you have to understand German

Ok, basically he said 60 degrees is indeed low and that it can harm the viscosity of the oil (in a nutshell, too lazy to translate it all).BUT he also said that measuring the temp at the bottom of the sump is wrong, due to the reasons I mentioned before. To get the real oiltemp you have to get the temp of the oil within the engine block, or if that's not possible right after it exits the block. I any case before the oilcooler. He said that the oil gets warmer on the way from the sump to where it lubricates due to the engine block heating it up. This isn't the solution, but now we know what has to be checked.