Oil Temps

[IanS]

I was just wondering what you guys are running for oil temps, and what do you think is dangerously high, and what is too low.

[s13sr20chris]

my oil temp gauge always read from 120 to 150 *F. then one day i got it real hot and changed my oil. i put a thermometer in the oil and got 190*F. my thoughts are that if you just tap into the oil pressure port for your temp gauge you will not get an accurate reading. you need oil flow(like an oil cooler line) or to tap into the oil pan. i am working on building my own oil pan.

[PalmerWMD]

Anything over 250F is dangerously high on Dino oil.

A strong group 4 or above oil can likely stand up to 300F but by that point something is overheating somewhere.

Hot spots always exist tho. Engines with excessive hot sports are known as "sludge monsters" ( some toyota and dodge engines especially).

In turbo engines in summer 260F is not as rare as many think.

A 5w-30 Dino oil is an absolute nono. :

A Dino oil only in a 20w-50 under these condtions and a syn in at least a 10w-40.

As for Dinos in this application they ahve to eb thick in order to sufficiently resist oxidation full syns like Mobil1, redline, amsoil and such can handle it in a 40 weight ( but 50 weight if a lot of racing street or autoX)

Fred..

[IanS]

sweet, Ive got my oil pan tapped for the sensor, and ive been running mobil 1 10 40, my norm temp is about 190, but tends to run around 205 on long highway sprints, ive never seen it go above there though.

[PalmerWMD]

those temps are real low..do you have an oil cooler?