oil temp c6
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
A lot depends on the conditions you're driving-in and how you're driving the car. 236 isn't excessive under most conditions. Coming off a 20+ minute road course session in 94 degree weather I've seen my oil temp in the 260's (all time high of 273). I tried a test for someone the other day (in was overcast and about 70 degrees) and after running a mile at 3500 RPMs my coolant was 187 and my oil temp 214.
Instructor
Joined: Sep 2006
Posts: 149
Likes: 0
From: Gilbert Arizona
The lowest I have seen after the car is fully warmed up is 207... 242 is my high. I always watch it when I first warm up the car and mostly leave the DIC set to it afterwards (that is why I know exact #'s). Wondered the same a while back but it appears you are fine.
Pro
Joined: Apr 2007
Posts: 663
Likes: 0
From: Arvada CO
And that is why I have a 160* thermostat. My oil temp is usually around 208, and if I get on it hard, I see about 214. I just feel better about the lower temps on the oil and engine....and I don't care about the negligible gas mileage I may be losing. In fact I just went on a 320 mile highway trip here in Colorado and the DIC said 35 mpg average.
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Race Director
Joined: Dec 2005
Posts: 11,279
Likes: 947
From: Carlsbad Ca
236F is within the "normal" operating specs for engine oils. However, if your oil gets to 300F, then it's beginning to "cook" the additive package.
Here is a good "rule of thumb," For every 10F over 300F that your oil is subjected to, you cut your oil life in half.
Remember: Compounded oil is created with heat, so it's readily destroyed by heat also.
Here is a good "rule of thumb," For every 10F over 300F that your oil is subjected to, you cut your oil life in half.
Remember: Compounded oil is created with heat, so it's readily destroyed by heat also.
Drifting
Joined: Apr 2005
Posts: 1,757
Likes: 484
From: Portland Oregon
A lot depends on the conditions you're driving-in and how you're driving the car. 236 isn't excessive under most conditions. Coming off a 20+ minute road course session in 94 degree weather I've seen my oil temp in the 260's (all time high of 273). I tried a test for someone the other day (in was overcast and about 70 degrees) and after running a mile at 3500 RPMs my coolant was 187 and my oil temp 214.
My 2005 coupe without Z-51 runs about 214 to 216 under normal cruising and will get up to 238 or so when I get on it a little on back country roads going through the twisties especially on the uphill sections. As I understand it, the temps have to get over 300 before there is any need for concern.
